_________ happened to be no one in the building when the fire broke out.
| A．It | B．There | C．This | D．That |
—This wall of air is an effective answer to the problem and it ____ work.
—But it is a question to put such a wall of air around the statue.
| A．may | B．must | C．should | D．could |
—The dinner was delicious!
—I agree. I am so full.
—That’s too bad. But some dessert ____.
| A．has ordered | B．will be ordered |
| C．has been ordered | D．was going to be ordered |
She felt sorry that she had disturbed the ____ calmness of a man she respected.
| A．regular | B．curious | C．usual | D．various |
We are going to discuss the way of reading works ____ it is used for real life purposes, and this should give you a better understanding of it.
| A．that | B．which | C．where | D．when |
His letter was especially welcome as I ____ from him for long.
| A．haven’t heard | B．would not heard |
| C．hadn’t heard | D．didn’t heard |