Câu hỏi:

Choose the letter A, B, C or D to answer these following questions

A new study published in the journal Science shows definitive evidence of organic matter on the surface of Mars. The data was collected by NASA's nuclear-powered rover Curiosity. It confirms earlier findings that Mars, the Red Planet once contained carbon-based compounds. These compounds – also called organic molecules – are essential ingredients for life as scientists understand it.

The organic molecules were found in Mars's Gale Crater, a large area that may have been a watery lake over three billion years ago. The rover encountered traces of the molecule in rocks extracted from the area. The rocks also contain sulfur, which scientists speculate helped preserve the organics even when the rocks were exposed to the harsh radiation on the surface of the planet.

Scientists are quick to state that the presence of these organic molecules is not sufficient evidence for ancient life on Mars, as the molecules could have been formed by non-living processes. But it's still one of the most astonishing discoveries, which could lead to future revelations. Especially when one considers the other startling find that Curiosity uncovered around five years ago.

Question: Why are the evidences in sufficient to claim life on Mars?

A. The molecules could have been formed by non-living processes.

B. The molecules exist everywhere on the planet.

C. All planets have these molecules.

D. The existence of these molecules is not strong enough.

Câu 1:

Rewrite sentences without changing the meaning

“Will aliens become good friends with humans?” Nick asked his teacher.

A. Nick asked his teacher if alien will become good friends with humans

B.  Nick asked his teacher if alien become good friends with humans.

C. Nick asked his teacher if alien would become good friends with humans.

D. Nick asked his teacher if alien does become good friends with humans.

Câu 2:

Choose the letter A, B, C or D to complete the sentences with given words

The reporter/ wanted/ know/ why/ I/ not/ taken/ a picture/ when/ I/ had seen. the UFO.

A.  The reporter wanted know why I hadn’t taken a picture when I had seen the UFO.

B. The reporter wanted know why I didn’t taken a picture when I had seen the UFO.

C. The reporter wanted to know why I hadn’t taken a picture when I had seen the UFO.

D. The reporter wanted to know why I didn’t taken a picture when I had seen the UFO.

Câu 3:

Rearrange the sentences to make meaningful sentences

The/ with/ Moon/ a/ plains/ was/ mountains/ like/ and/ valleys/ desert/.

A.  The Moon was like a desert with plains, mountains, and valleys.

B. The Moon was a desert like with plains, mountains, and valleys.

C. The Moon like was a desert with plains, mountains, and valleys.

D. The Moon was like with a desert plains, mountains, and valleys.

Câu 4:

Choose the letter A, B, C or D to complete the sentences with given words

In the film, John Harrison/ be/ space terrorist/ who/ want/ destroy/ the Earth.

A.  In the film, John Harrison is a space terrorist who wants destroy the Earth.

B. In the film, John Harrison is space terrorist who wants to destroy the Earth.

C. In the film, John Harrison is a space terrorist who wants to destroy the Earth.

D. In the film, John Harrison is space terrorist who wants destroy the Earth.

Câu 5:

Rearrange the sentences to make meaningful sentences

NASA/ launch/ decided/ Cape Canaveral/ end/ at/ from/ of/ the/ a rocket/ this year.

A.  NASA decided launch to a rocket from Cape Canaveral at the end of this year.

B. NASA decided launch from a rocket to Cape Canaveral at the end of this year.

C. NASA decided to launch a rocket at from Cape Canaveral the end of this year.

D. NASA decided to launch a rocket from Cape Canaveral at the end of this year.

Câu 6:

Rewrite sentences without changing the meaning

I asked Ms. Gray if she could speak Martian language.

“______________________?” I asked Ms. Gray.

A. Could you spoke Martian language?

B. Can you speak Martian language?

C. Could you speak Martian language?

D. Can you spoke Martian language?