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9．Pay more attention to the job you are doing, and you will find the result　　　 (turn )out surprisingly good.

8．The dormitories should remain　　　　　 (lock)during our absence.

7．After more than fifteen years’ efforts, purified penicillin was finally a dream　　 (come)true.

6．That boy was caught　　　 (thin)the chemicals with tap water.

5．The teacher recommended that we 　　　　　(collect)some firewood to cook the lunch.

4．Patience was fundamental to 　　　(play)dominos.

3．　　　　 (not expose)to strong sunlight for a long time should be kept in mind in summer.

2．If we fail to achieve 4As this time, we can do nothing but　　　 (study)even harder hereafter.

1．Where are you considering　　　　 (go) for the coming May Day?

10．His a　　　　 to the drug ruined his future.