—You didn't wait for Mr. Smith last night, did you?
—Yes, but we ________. He didn't return home at all.
| A．don't have to | B．needn't have |
| C．didn't need to | D．should have |
It will _______ no difference whether our pay will be raised _______ 5% this year.
| A．take; by | B．make; to | C．make; by | D．give; to |
The Canadian friends from our school have given us a lot of books, few of______ a bit difficult for us Chinese students.
| A．them are | B．that is | C．which are | D．which is |
Words _____ me when I wanted to express my thanks to him for having saved my son from the burning house.
| A．failed | B．left | C．discouraged | D．disappointed |
—He is ________ a brave man.
—We can’t admire his courage___________.
| A．actually; very much | B．indeed; too a lot |
| C．really; too much | D．truly; a bit |
—How often do you eat out?—________, but usually once a week.
| A．Have no idea | B．It depends | C．As usual | D．Generally speaking |