（2）完成句子：根据所给汉语完成句子，使句子意思完整、正确。（每空0.5分，共7分）
73. 这个老人以卖报纸为生。
The old man __________ __________ _________ __________ selling books.
74. 你英语讲得很好，但最好注意书面英语。
You speak English very well, but you’d better _________ __________ _________your written English.
75. 很显然她误解了我的意思。
_________ __________ _________that she misunderstood me.
76. 在广西，农作物受益于昨晚这场雨。
The crops have __________ _________ the rain last night in Guangxi.
77. 店主尽力赢回顾客。
The shopkeeper tried his best to _________ his customers ________.
Don’t only give me a simple answer. Explain it _______ possible.
| A．whatever | B．however | C．whoever | D．whenever |
— Mum, would you please buy me an MP5 player?
— If you can help do the dishes the whole vacation, you ______ have one as a reward.
| A．would | B．shall | C．may | D．must |
The retired worker likes getting up early. The air in the morning is good ______.
| A．being breathed | B．breathing | C．to be breathed | D．to breathe |
They must have finished the work by the end of last month, ______?
| A．hadn’t they | B．mustn’t they | C．haven’t they | D．didn’t they |
— He thinks that girls are smarter than boys when it comes to learning English.
— But two years ago he thought_______.
| A．so | B．otherwise | C．opposite | D．different |