A、单项选择
1.When ____ ,the museum will be open to the public next year.
A.completed B.completing
C.being completed D.to be completed
2.The research is so designed that once ___ nothing can be done to change it.
A.begins B.having begun C.beginning D.begun
3.___ ,they went home,___.
A.Their work had been finished;singing and laughing
B.They had finished their work;sang and laughed
C.Their work finished ;singing and laughing
D.After their work finished;singing and laughing
4.____ more attention,the trees could have grown better.
A.Given B.To give
C.Giving D.Having given
5. Unless ________ to speak, you should remain silent at the conference
A. invited B. inviting C. being invited D. having invited
6.____,the experiment will be successful.
A.If carefully doing B.If it done carefully
C.If carefully done D.If doing carefully
7. Friendship is like money: easier made than ______.
A. kept B. to be kept C. keeping D. having kept
8. She begins to cry loudly as if_______ bitten by a snake.
A.was bitten B. bitten C.bit D.to be bitten
9. If______ it is heated to a high temperature, water will change into vapour
A.is heated B.heating C.heated D.to be heated |
