10. - Can you show me your headmaster's office?
-_____But I don't know if he is in at the moment.
A. Go ahead B. You're welcome c. Of course not D. Sure
第二节:语法和词汇知识(共15小题:每小题1分,满分15分)
从A、B. C.D四个选项中,选出可以填入空白处的最佳选项。
6. The patient's recovery was very____as he could nearly get out of bed without help.
A. moving B.touching C. encouraging D. Inviting