I don’t know if he tomorrow. If he , I’ll tell him about it.
A. will come, will come B. comes, comes
C. comes, will come D. will come, comes
We can’t work out the physics problem. Can you tell us ____?
A .how to do B. what to do it
C. how to do it D. what should to do
This question sounds _____ than that one.
A. many more polite B. much more polite
C. many more politely D.much more politely
Health is very _____and every student knows the _____of keeping healthy.
A. important ; importance B. important ; important
C. importance; importance D. importance; important
Our country _______ a lot in the last fifty years.
A. will change B. changed
C. changes D. has changed
She said she had some trouble ___________ her homework.
A. finish B. finishing
C. to finish D. Finished