- We are _______ at the rapid progress Mark has made in this semester.
- She is already 16years old. But she _______as if she were still a little girl.
- This river forms a natural _______ between China and Korea.
- When a spacecraft travels, one of the major problems is reentry into the Earth ’s _______.
- In order to increase our output, we need to import more production _______.
- We can not trust him any more because he often________ his duty.
- John _______ to be a polite man. But in fact he is veryrude.
- When you fill in the application form, please use your_______ address so that we can contact you easily later.
- He works in our university as a visiting _______, not as a formal faculty member.
- In the United States, the foreign policy is decided by the ________ government, not by each state.
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