单句填空（每题1分，共10分）
1. After the exam, my teacher told me that failure is (be) the mother of success.
2. There is no such thing as a free lunch.
3. There is a determined (determine) look on his face.
4. Once she made up her mind, nothing can change it.
5. Wewill leave/are leaving (leave) for Japan tomorrow morning.
6. He asked me whether the big flood had destroyed/ destroyed (destroy) the area.
7. Years passed before the war was finally at an end.
8. He tried to work, but it was useless (use).
9. It was the curtain that was full of dust.
10. Geography also plays a part in making dialects.
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解析：
【小题1】考查宾语从句的时态。当宾语从句指的是客观真理或事实时，用一般现在时。“失败是成功之母”是客观真理。故填is。
【小题2】考查固定搭配。such...as...“如此的......”。故填as。
【小题3】考查形容词作定语。修饰人时，用以ed结尾的形容词；修饰物时，用以ing结尾的形容词。这里的look“表情”，指人，故填determined。
【小题4】考查条件状语从句。once“一旦”，一旦条件状语从句。故填Once。
【小题5】考查时态。根据tomorrow morning可知，用一般将来时。Leave, go, e, move等可以用进行时表示将来。故填will leave/are leaving。
【小题6】考查时态。宾语从句的时态要与主句一致，主句用的是过去时，从句用相应的过去时态。故填had destroyed/ destroyed。
【小题7】考查固定短语。at an end“结束”。故填an。
【小题8】考查形容词。根据but可知，表示转折的含义，useless“无用的”。故填useless。
【小题9】考查强调句型。It is...that...“正是......”，是强调句型，去掉后不影响句意。这里强调的是the curtain，句意“窗帘上布满了灰尘”。故填that。
【小题10】考查固定句型。play a part/role in...“在......中扮演角色”。故填in。