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[主观题]
()many difficulties, they still went on with their experiment.A、FaceB、FacedC、Facing wit
()many difficulties, they still went on with their experiment.
A、Face
B、Faced
C、Facing with
D、Faced with
![](https://lstatic.shangxueba.com/sxbzda/h5/images/tips_org.png)
()many difficulties, they still went on with their experiment.
A、Face
B、Faced
C、Facing with
D、Faced with
第2题
Why is it difficult for the world to talk()clones and to reach an agreement?
A、over
B、about
C、with
D、beyond
第4题
We searched for the missing papers and finally()them in a drawer.
A、sought
B、discovered
C、looked at
D、looked for
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