__________it is raining, you’d better take a taxi.
| A．Because | B．As | C．Till | D．After |
—Hey, Jack. You ________ on the phone just now. But you weren’t here and the man left a phone number.
—Oh? I was in the library.
| A．wanted | B．are wanted | C．were wanted | D．have wanted |
—Have you watered the plants yet, Kathy? —Yes. I ________ that this morning.
| A．will do | B．did | C．have done | D．was doing |
—Let’s plan a surprise party for our class. What’s your idea?
—Why not ________ a short play?
| A．get on | B．keep on | C．have on | D．put on |
—Will you please answer the door? It ________ be your sister.
—Sorry, I ________. I’m feeding the rabbit.
| A．must; mustn’t | B．may; can’t | C．will; can’t | D．must; needn’t |
—Jim, is physics difficult to learn in high school?
—Sure. No subject can be learned well ________ hard work.
| A．without | B．from | C．through | D．for |