. When the last prize had been awarded _____ everybody cleared off.
| A．and | B．so |
| C．or | D．不填 |
This is a reading room, boy． You must act in a way won’t disturb others．
| A．in which | B．it | C．which | D．as |
．—You may find the key to the maths problem on page 107 .
—Ah, it’s so simple . I wonder why I of that .
| A．hadn’t thought | B．haven’t thought |
| C．didn’t think | D．wasn’t thinking |
________________ he will come back this week or next week is not decided .
| A．That | B．Whether | C．When | D．If |
He traveled from place to place , social problems of all kinds .
| A．making out | B．seeing to | C．going over | D．looking into |
Thank you for sending us fresh vegetables of many kinds . You have done us
great service .
| A．不填； a | B．不填；不填 | C．the ；a | D．the ；不填 |