Scientists are working hard to make _______ possible for people to live on Mars in the future.
| A．it | B．that | C．this | D．one |
-Is that a boy or a girl? .
, I think.
| A．Yes, it is | B．No, it isn't | C．That's nice | D．That's a girl |
-My son is studying for an important exam. Could you please the music a little? -I'm very sorry.
| A．give out | B．pick up | C．turn down | D．take off |
Steve felt bored. He found interesting in that magazine.
| A．something | B．anything | C．everything | D．nothing |
Pleaseforget your homework. You are supposed to hand it in tomorrow moming.
| A．aren't | B．haven't | C．don't | D．didn't |
My grandma is a little deaf I usually speak to her veryso that she can hear me.
| A．quickly | B．loudly | C．hardly | D．politely |