I can think of many cases ______students obviously know a lot of English words and expressions but couldn’t write a good essay .

The study you have been making________the ancient Chinese culture is an interesting job

the bridge and _______a vast carpet ofgreen land stands the King’s college, the largest and most beautiful buildingin Cambridge

You can only be sure of __________ you have at present; you cannot be sure of something __________ you might get in the future.

in the adult ceremony，the senior students feel they are shouldering heavier responsibilities now.