—Did you have a wonderful weekend?
—We could have if it ____ fine. But it____ all the time.
| A．was; has rained | B．was; rained |
| C．had been; has rained | D．had been; rained |
It was not until he arrived at the office_____ realized he had forgotten the key.
| A．and he | B．when he | C．that he | D．he |
You can’t imagine _______ when they received those nice Christmas presents.
| A．how they were excited | B．how excited they were |
| C．how excited were they | D．they were excited |
It is difficult for us to _________ a conversation with so much noise around us.
| A．communicate with | B．carry on | C．set up | D．bring up |
____ of the land in my hometown ____
covered with trees and grass.
| A．Two-fifths; is | B．Two-fifth; are | C．Two-fifth; is | D．Two-fifths; are |
I failed again in the examination and only then _____ how much time I had wasted.
| A．I realized | B．I had realized | C．did I realize | D．had I realized |