用适当的短语完成句子。

The US is ________ their research on outer space．(step up/step forward)

用适当的短语完成句子。

A team is set up by the government to ________ the cause of the fire, which has caused the death of over 100．(look up/look into)

用适当的短语完成句子。

All our achievements are ________ the correct leadership．(due to/according to)

用适当的短语完成句子。

The man ________ a story about his sick daughter and got donations from many kinds of people．(make into/make up)

用适当的短语完成句子。

It was getting dark when she finally ________, and she explained that was because of the terrible traffic jams．(show off/show up)

用适当的短语完成句子。

Class Five used to be ________ Mr．Zhang, an English teacher．(in charge of/in the charge of)

用适当的短语完成句子。

The operation on the wounded boy turned out to be quite satisfactory ________ the doctors’ great efforts．(because/because of)

用方框中单词的正确形式完成句子。

1．Many UFO ________ have been reported in that area．

2．There wasn’t enough ________ to prove him guilty of the crime．

3．The more he tried to explain, the less ________ he was．

4．The old lady was found ________ in her bedroom．

5．He got his ________ back slowly after his illness．

6．Yesterday on his way home, he was ________ by the woman wearing a mask．

7．Two guards of the supermarket are said to have ________ a suspected customer, but they found nothing．

8．He is the only ________ of/to the accident．

9．All the people in town were worried about the ________ boy．

10．Nothing can prevent him from ________ his dream．

根据所给的词性写单词。

1．frighten(形容词)________

2．disappearance(动词)________

3．straight(副词)________

根据所给的词性写单词。

1．possible(名词)________

2．mysterious(名词)________

3．white-skin(形容词)________