________arriving in Tibet , the soldiers at once joined them ____their work.
At; with B. On; in C. For; with D. After; to
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I’d rather have a room of my own, however small it is, than ___ a room with others.
| A．to share | B．to have shared | C．share | D．sharing |
Some researchers believed that there is no doubta cure for AIDS will be found.
| A．which | B．that | C．what | D．whether |
You’d better _____ some money for special use.
| A．pick up | B．set aside | C．put off | D．give away |
Many studentspreparing for the midterm examination.
| A．are engaging in | B．are engaging themselves |
| C．are engaging themselves | D．are engaged in |
; covering相关知识点
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