1.Unless he ___ to help us, we shall lose the game.
  A.promises
  B.will promise
  C.would promise
  D.had promised
2.Would you please give him this message the moment he ___.
  A.arrives
  B.arrived
  C.will arrive
  D.will be arriving
3.The moment I ___ her,I knew something ___ wrong.
  A.have seen;gone
  B.had seen;had
  C.saw;was
  D.see;had gone
4.I'm sure he will help her if she ___ him.
  A.asks
  B.asked
  C.would ask
  D.had asked
5.However hard you ___, you will never succeed in pleasing her.
  A.should try
  B.will try
  C.would try
  D.try
6.As soon as I ___ home, I'll have a hot bath.
  A.have got
  B.will get
  C.get
  D.am getting
7.As soon as I ___ the crossroad,the traffic light ___ red.
  A.had come to;turned
  B.had come to;had turned
  C.came to;turned
  D.have come to;have turned
8.I'm sure he'll come to see me before he ___ Beijing.
  A.leave
  B.left
  C.will leave
  D.leaves
9.We will not come to any decision until we ___ a chance to discuss
  the problemthoroughly.
  A.are having
  B.had
  C.have
  D.will have
10.She won't believe it until she ___ it with her own eyes.
   A.see
   B.has seen
   C.saw
   D.will see
11.It ___ nearly two weeks ___ I hadreceived his letter.
   A.is;that
   B.was;that
   C.is;since
   D.was;since
12.It is five years since my dear aunt ___ here.
   A.left
   B.has left
   C.is left
   D.had left
13.If it ___ rain tomorrow,we will hold the sports meet.
   A.won't
   B.doesn't
   C.will
   D.wouldn't
14.There was complete silence when he ___ the radio.
   A.has turned off
   B.turned off
   C.had turned off
   D.turns off
15.I don't know when he ___ , but when he ___ I'll speak to him.
   A.will come;comes
   B.comes;comes
   C.comes;will come
   D.will come;will come
16.-- When ___ again?
   -- I'll let you know as soon as he ___.
   A.he returns;returns
   B.will he return;will return
   C.he returns;will return
   D.will he return;returns
17.When I see Jane in the street,she always ___ at me.
   A.smiled
   B.has smiled
   C.was smiling
   D.smiles
18.Who ___ to school earliest in your class every morning?
   A.come
   B.comes
   C.is coming
   D.are coming
19.Sound travels in the same way as light ___.
   A.does
   B.do
   C.travel
   D.travelled
20.It won't be long before such a thing ___ again.
   A.will happen
   B.happens
   C.is happened
   D.happened


