—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 |
His uncle gave him books to read, but after a page or two he would put __book down and pick up__ new one.
| A．the,/ | B．a; a | C．a; the | D．the; a |
The oil must be used up, the light went out.
| A．for | B．because | C．since | D．as |
.They have their reasons for keeping their marriage___ secret for ___ moment.
| A．the; a | B．the; the | C．a; the | D．a; a |
---Poor Tom! He will have to work all the next month.
---Luckily,the basketball games are held.
| A．except | B．except that | C．except when | D．except for |
He had decided to give it up , but on____ second thoughts he decided to try___
third time.
| A．the; a | B．/ ; / | C．a; a | D．/ ; a |