1,will have finished
2,will surprise
3,came-has doubled-have been built
4,will be
5,will employ
6,is trying
7,is dying-has just left
8,understand
9, is raining
10, floats
11,is falling
12,matters
13, was listening- rang-didn't hear
14,learn
15,always read-have
16,has learnt-masters
17,has been raining-stops
18,opened-saw
19,asked-did-said-has dropped
20,recover-will have disappeared
cho mk hay nhất nhé