No matter how frequently__________, the works of Beethoven always attract large audiences.
A. performed B. performing
C. being performed D. to be performed
---Would you like ____________, sir?
--- No, thanks. I have had much.
A. some more oranges B. any more oranges
C. some more orange D. any more orange
____________ with care, one tin will last for six weeks.
A. Use B. Using
C. Used D. To use
There are some health problems that, when _______ in time, can become bigger ones later on.
A. not treated B. not being treated
C. not to treated D. not have been treated
Don’t you know ____________, my dear friend, it is you that she loves?
A. who B. which
C. that D. what
Anyone, once ____________ positive for H7N9 flu virus, will receive free medical treatment from our government.
A. to be tested B. being tested
C. tested D. to test