单项选择题
A. am going to take an exam B. am taking an exam C. will be taking an exam D. am to take an exam
A person （）a foreign language must be able to use the l...
单项选择题A person （）a foreign language must be able to use the language （）all his own.
A. learning ,forgetting B. to learn, to forget C. using ,but D. who learns ,to forget
While building a tunnel though the mountains, ______. A...
单项选择题While building a tunnel though the mountains, ______.
It is important that I （）with Mr. Williams immediately....
单项选择题It is important that I （）with Mr. Williams immediately.
A. speak B. spoke C. will speak D. to speak
