Câu hỏi:

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

The first experiment was __________, so we need to do another one.

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

The teacher __________ me that I had better devote more time to doing scientific researches.

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

If the teacher were here now, we’d ask him the difference __________ “science” and “technology”.

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

I want to go to the supermarket to buy some __________ bulbs.

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

He said: “I like to do physics experiments.”

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

A person who plays the piano is a(n) __________.

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

There are a lot of benefits to do __________ researches.