I was deep in thought, so I didn't notice _____.
| A．him to come in | B．him come in | C．he come in | D．him coming in |
---- Guess what! I have got “A” for my term paper.
---- Great! You ____ read widely and put a lot of work into it.
| A．must | B．must have | C．should | D．should have |
. Although surprised, she pretended to be calm____ nothing had happened.
| A．that | B．because | C．as if | D．even though |
Washington, a state in the United States, was named _____ one of the greatest American president.
| A．in honor of | B．in need of |
| C．in favour of | D．by means of |
Was it______ Mike’s careless ____ your keys were lost?
| A．because; which | B．for; what |
| C．because of; that | D．because; why |
. --- It remains to be seen _____ the plan can be carried out.
--- It is up to you.
| A．where | B．whether | C．why | D．that |