I was tired and couldn't ____ on doing my research ...

[ Vocabulary ]

I was tired and couldn’t ____ on doing my research project properly.

A. concentrate

B. look

C. pay attention

D. Both A and C

Select your answer:

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Relative Pronouns › View

This was the room ______ we first met and spoke. Do you remember?

A. who

B. that

C. whose

D. which

Modals › View

We use _____ for possibility in future in more formal way.

A. may

B. might

C. could

D. will

How to use : Read the question carefully, then select one of the answers button.