Câu hỏi:

Electronic devices are bad for your eyes. Their radiation is very harmful.

A.  Electronic devices that their radiation is very harmful are bad for your eyes.

B.  Electronic devices which their radiation is very harmful are bad for your eyes.

C.  Electronic devices, whose radiation is very harmful, are bad for your eyes.

D.  Electronic devices, which are bad for your eyes, their radiation is very harmful.

Câu 1:

I deeply regret ____ to her so severely last night. She was badly hurt.

A.  to speak

B.  being spoken

C.  having spoken

D.  to be speaking

Câu 2:

Mangkhut is the most powerful storm ______ Asia this year.

A.  to hit

B.  which is hit

C.  hit

D.  hitting

Câu 3:

Smartphones, laptops and tablets are the modern devices __ have changed the way we learn.

A.  that

B.  whose

C.  what

D.  X

Câu 4:

Face ID, which is an Apple's security technology for iPhone X, permits users _____ their devices just by looking at them.

A.  unlocking

B.  unlock

C.  of unlocking

D.  to unlock

Câu 5:

Choose the sentence that best combines the two given

He died in 1960. He received the bravery award in 1970.

A. After his death, he received the bravery award in 1970.

B. He died in 1960 so he received the bravery award in 1970.

C. Before his death, he received the bravery award in 1970.

D. Because he died in 1970, he received the bravery award in 1970.

Câu 6:

Choose the underlined part that needs correcting

Question 17. Some of my classmates spend most of their spare time to surf the Net.

A.  Some of 

B.  most of 

C.  spare

D. to surf