——Who it be that is knocking at the door?
——It be Father, but I’m not sure.
| A．can; must | B．can; may | C．must; can | D．may; must |
I admired my classmate Lisa very much. ________her prettiness, she was smart and helpful.
| A．Apart from | B．Except for | C．But for | D．In spite of |
Children are not recommended to see such films________bad for their mental development.
| A．that is | B．that are | C．as are | D．as is |
Because of Einstein’s Theory of Relativity, scientists never again regarded the world________.
| A．as before they did | B．as they regarded before |
| C．as they did before | D．as they had before |
．--- Hurry up. The bus is coming.
--- Oh, no. We mustn’t cross the street_______the traffic lights are green.
| A．until | B．since | C．while | D．after |
Sorry, you lost your purse; I hope it will________some day.
| A．turn out | B．show off | C．show up | D．turn up |