--Why won’t you go to Jim’s birthday party with us?
--Well, I don’t like him, if you ________know.
| A．can | B．may | C．must | D．should |
How little Franz regretted the days ______ playing in the woods and fields.
| A．which wasted | B．wasted | C．having wasted | D．which is wasted |
They _____ be at home. You see, the door is locked from the outside.
| A．may | B．must | C．mustn’t | D．can’t |
______ you return those books to the library immediately, you will have to pay a fine.
| A．Until | B．Unless | C．If | D．Provided |
The teacher began by _____ us where the city was and went on ______ about its history.
| A．telling...to talk | B．to tell...to talk | C．telling...talking | D．to tell...talking |
Human be haviour is mostly a product of learning, ____ the behavior of animals depends mainly on instinct.
| A．whereas | B．so | C．unless | D．that |