We shall go_____we are free.
| A．whenever | B．whatever | C．wherever | D．however |
It is hard to say what kind of person he is. Sometimes he is very friendly; at other times he ___ be very cold.
| A．can | B．must | C．will | D．shall |
Doing your homework is a sure way to improve your test scores, and this is especially true ____ it comes to classroom tests.
| A．before | B．since | C．when | D．after |
—“Do you mind if I look at your notes?”
—“Of course not. _______.”
| A．No problem | B．Be my guest | C．With pleasure | D．Not at all |
Afghans used to hold big weddings, costing thousands of dollars, in a county _____ the average annual income is less than $400.
| A．which | B．whose | C．where | D．what |
She ought to stop work; she has a headache because she ___________ too long.
| A．has been reading | B．had read | C．is reading | D．read |