He has a great interest in tennis and ______ it twice a week over the past year.
| A．plays | B．played |
| C．had played | D．has been playing |
— How could I thank you enough?
—Don’t mention it. Any other man_________ that.
| A．must do | B．could do | C．would have done | D．should have done |
Between the two roads_________ a TV tower called“Skyscraper Tower”.
| A．stands | B．standing | C．which stands | D．stand |
______
__________ surprised us very much that Tom should have left without a word.
| A．He | B．It | C．This | D．That |
It is reported that two schools, _________are being built in my hometown, will open next year.
| A．they both | B．which both | C．both of them | D．both of which |
He tried his best to solve the problem, _______difficult it was.
| A．however | B．no matter | C．whatever | D．although |