单项选择题
The researcher has to start looking for a company（）
A. which I would like you to have. B. that values his new ideas. C. which is the Mark 2 project. D. that the process can be made simpler.
单项选择题 I just received a proposal（）
单项选择题 We use our tongue to（）.
单项选择题 She said that she wouldn't mind（）the typing work for you.
