—______are you staying there?
—Just for two days.
| A．How long | B．When |
| C．How often | D．How many |
You must apologize to her ______ being late.
| A．to | B．with | C．by | D．for |
Why not __________ the right answers?
| A．ticking | B．tick |
| C．to ticking | D．to tick |
—I enjoyed the performance very much.
—Yes, it was really good. I think ____ boy in white was the best dancer.
| A．a | B．an | C．the | D．/ |
Australia is a continent ___ many different kinds of animals.
| A．has | B．have | C．with | D．in |
—Would you like to go to the party?
—I’d like to, ____ I’m busy. I’m afraid I can’t join the party.
| A．and | B．so | C．because | D．but |