Not until ________to do my homework ________ how much time I had wasted playing computer games.
| A．I began; I realized | B．I began; did I realize |
| C．did I begin; I realized | D．did I begin; did I realize |
You must be aware ______the fact that it is ____ great importance to learn English well.
| A．to; of | B．of; of | C．to; in | D．of; in |
I won’t give you any help __________ you tell me the truth. It’s none of my business.
| A．unless | B．since | C．as though | D．even though |
Many of my students, __________ Zhang Hua and Li Yong, are working very hard, and we should learn from them.
| A．for example | B．such as | C．that is | D．as well |
Of these two teams above, the former comes from the US; the _________ comes from England.
| A．late | B．later | C．latter | D．lately |
Readers can _________ very well without knowing the exact meaning of each word.
| A．get along | B．get down | C．get through | D．get over |