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 |
With the guide _______ the way, we finally got to the village which we were looking for.
| A．led | B．leading | C．to lead | D．had led |
I think they’ve got to the very point _______ a change is needed, or they will fail.
| A．when | B．which | C．where | D．that |
Thecleverboymadeaholeinthewall,____hecouldsee____was goingoninsidethe house.
| A．which;what | B．throughwhich;what | C．throughthat;what | D．what;that |
He had no sooner arrived there ________ pestering his doctor.
| A．and then he began | B．when he began | C．to begin | D．than he began |
While s
hopping, people sometimes can't help _______ into buying something they don't really need.
| A．to persuade | B．persuading | C．being persuaded | D．be persuaded |