1.     I have never played badminton before. This is the first time I (try) to play. →

2.     Since he (leave), I have heard nothing from him. →

3.     This is the first time I (be) here. →

4.     Last week, my professor promised that he (come) today. →

5.     My girl fried arrived after I (wait) for her about half an hour. →

6.     Did she say she (visit) him tomorrow? →

7.     It (begin) to rain before you woke up this morning? →

8.     My daughter saw an elephant this morning but she never (see) one before. →

9.     I (live) in Da Nang before I moved to Dong Nai. →

10.  There are many ways (lead) to Rome. →

11.  I just want to know what you (be) at this time tomorrow afternoon. →

12.  I am reading this novel. By the time you come back from work I (finish). →

13.  When we got home. Dinner (prepare), so we had a drink first. →

14.  She was tired. She (learn) for a long time. →

15.  He (travel) in space for ten days by tomorrow. →

16.  He said he would visit me, but he (not visit) me yet. →

17.  The weather (be) fine so far this week. →
mk có gửi r nhưng chưa có lời iari.lm giúp mk vs ạ