It is a long time _______they separated, but it won’t be long ____ they meet again.
| A．since; before | B．after; when | C．since; when | D．after; before |
It is said that there are millions of camels in India and _______ of them is growing.
| A．a great number | B．the number | C．a lot | D．a good many |
They ask about the things and teachers ______ they still remembered in the school.
| A．which | B．that | C．whom | D．who |
I gave the papers to every one of the class, except, of course, the ___________who had already come to the office to collect_________.
| A．those; them | B．those; it | C．ones; them | D．one; it |
It is _____to see a monkey _______the bicycle.
| A．fun, be riding | B．a fun, riding | C．funny, rode | D．fun, riding |
Hurry! The plane ______ . You know, it ______at 3:15.
| A．takes off, takes off | B．is taking off, takes off |
| C．takes off, is taking off | D．is taking off, is taking off |