Don’t waste your time in your holiday. Try to find _______ useful to do.
A. somebody B. somewhere C. something D. someone
As the _______ grows larger, the world itself seems to be smaller.
A. population B. pollution C. problem D. province
--- Will Jim go hiking with us this weekend?
--- Maybe not. He _______ to visit his grandpa in the country.
A. will decide B. decides C. has decided D. decided
There’s still an hour left, you _____ go in a hurry.
A. must B. needn’t C. can D. mustn’t
---Have you seen Bill recently?
--- Oh, no! Nobody knows ______ he is! Everyone is looking for him.
A. where B. what C. who D. how
---Do you still remember the first day we met at school?
--- Very clear _____ it was yesterday.
A. as long as B. as if C. as soon as D. as a result