1 . ______Yang did not get the best scores on every single test, it was his high scores on the psychological tests that finally won him the status of China’s first astronaut.(所给词的适当形式填空)

2 . Recently I________(see) an unusual number of UFOs! （所给词的适当形式填空）

3 . If________(breathe)in, the viruses can result in illness or even death.（所给词的适当形式填空）

4 . There is concern __________ the construction company that built the tower block had not followed fire safety rules. (用适当的词填空)

5 . 警察加强了对三天前失踪的那个男孩的搜寻工作。
The police have stepped ____________ their search for the boy ____________ went missing three days ago.

6 . 柯林和我打算在他上大学之前花几个星期去旅游。
Colin and I plan to spend a few weeks ____________ before he ____________ to university.

7 . 我妈妈总是叫我不要和别人打架。
My mother ____________ telling me not ____________ fight with others.

8 . 警察搜查了事故发生的那幢房子。
The police searched the house ____________ the accident had ____________ .