18、How long you uncle (live) in Beijing.
17、It (rain) for 3 days. There are too much rain is year.
16、The plane (take off) in a moment.
15、We (start) at 10 if it (stop) raining.
14、 (be) there much snow last winter? No, there (not).
13、My mother (work) for 3 years.
12、There (be) a meeting tomorrow. Please (come) on time.
11、He (give) you the answer as soon as he (come) back.
10、He never (meet) a foreigner.
9、My friend (see) the film before.