It is usually warm in my hometown in March, but it _____ be rather cold sometimes.
| A．would | B．can | C．should | D．must |
—I'm sorry I stepped outside for a smoke. I was very tired.
—There is no________for this while you are on duty.
| A．reason |
| B．excuse |
| C．cause |
| D．explanation |
—Would you like to go to the dinner party on Saturday?
—Thank you. I'd love to，________I'll be out of town at the weekend.
| A．because |
| B．and |
| C．so |
| D．but |
—Haven't you realized the use________the used paper?
—Yes, already.
| A．we make of |
| B．which we make |
| C．for our making |
| D．for us to make |
Being determined is a kind of quality and that's________it takes to do anything properly.
| A．how |
| B．which |
| C．where |
| D．what |
—What do you expect Mr. Zhang to succeed in?
—________.
| A．To pass the driving test |
| B．Passed the driving test |
| C．Did well in the driving test |
| D．Passing the driving test |