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

There are a lot of benefits to do __________ researches.

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

Archaeology are digging the ground to __________ that site.

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

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

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.