Câu hỏi:

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

There are a lot of benefits to do __________ researches.

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

We are trying to __________ the problem with the steam engin

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

The new invention may receive a lot of __________ from the public.

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

Science is used in all corners of the world for the __________ of human