John received an invitation to dinner, and with his work ________, he gladly accepted it．
| A．finished | B．finishing | C．having finished | D．was finished |
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 |