Most students like dinosaurs, but ______ of them know the story of dinosaurs.
| A．many | B．each | C．few | D．any |
Do you think ________ necessary to take the second turning?
| A．him | B．it | C．I | D．that |
I try to eat junk food only once a month _____ I love it.
| A．through | B．but | C．and | D．although |
_______ homework, we do their homework on Sunday.
| A．As for | B．As to | C．As of | D．As from |
---How often are the Olympic Games held？ ---_____four years.
| A．Every | B．Each | C．In | D．For |
The ice isn’t ______________ to skate on.
| A．thin enough | B．enough thin | C．thick enough | D．enough thick |