Fill in the blanks in the following sentences with suitable tense of given verb.
(同埋講埋點解要係咁寫,因為我唔識所以就要問下,唔該你地)
16.They ___ (be) very busy every weekday.
17.He sat in an armchair and ___ (fall) asleep.
18.We were surprised to hear that she ___ (enter) a university at the age of 15.
19.They went home after they ___ (finish) their work.
20.You mustn't get up until your temperature ___ (go down).
21.I hope it ___ (stop) raining by five o'clock.
22.He'll tell you when you ___(ask) him.
23.It ___ (rain) hard when I came home.
24.She ___ (grow) fatter every day.
25.He ___ (not come) home yet. He never ___ (come) home before
10 o'clock.
26.He ___ (work) in the post office for ten years.
27.Nobody ___ (speak) to him since the quarrel.
28.The boys ___ (win) a football match yesterday and were very happy.
29.That river ___ (freeze) in winter.
30.They began to build the house two years ago , but they ___(not finish)
it yet.