—Hi, Johnson, any idea where Susan is?
—It’s class time, so she _____ in the classroom now.
| A．can be | B．must have been |
| C．might have been | D．should be |
Close the door of fear behind you, and you __________ the door of faith open before you.
| A．saw |
| B．have seen |
| C．will see |
| D．are seeing |
Every day __________ a proverb aloud several times until you have it memorized.
| A．read |
| B．reading |
| C．to read |
| D．reads |
If __________ to look after luggage for someone else, inform the police at once.
| A．asked |
| B．to ask |
| C．asking |
| D．having asked |
Read this story，__________ you will realize that not everything can be bought with money.
| A．or |
| B．and |
| C．but |
| D．so |
-How did you
react __________ your father's suggestion?
-I reacted strongly __________ it.
| A．on; to |
| B．on; with |
| C．against; with |
| D．to; against |