A. having been B. only to be C. always being D. unfortunately
单项选择题All()has already been done.
A. can be done B. should be done C. that can be clone D. what should be done
单项选择题Neither he nor I()from Canada. We are from Australia.
A. is B. are C. am D. be
单项选择题It is chairman of the department ______ the teaching staff elected him.
单项选择题I prefer ______ there doing nothing.
单项选择题It is foolish ______ such a mistake.