It is thought that one billion people I the world, ______is half the word’s workers, earn their living by farming.
| A．if | B．that | C．which | D．what |
----Little Daniel is watering the flowers! Why?
-----Well, I’m not feeling very well today—otherwise Iit myself.
| A．did | B．would do | C．have done | D．will have done |
Do you think the presidential election between Obama and Romney is worthy?
| A．discussing | B．to be discussed | C．to discuss | D．being discussed |
Almost everyone has his own strengths and weaknesses. It isothers are weak that maybe you have a great advantage.
| A．as | B．where | C．that | D．what |
----You didn’t wait for Mr. Smith last night, did you?
-----Yes, but we. He didn’t return home at all.
| A．don’t have to | B．didn’t need to | C．needn’t have | D．should have |
----She didn’t take the medicine last night, did she?
-----.
| A．No, but I wish she wouldn’t | B．No, but I wish she had |
| C．Yes, but I wish she did | D．Yes, but I wish she would |