—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 |
Do you dress differently because of_____you see in ad or buy things you might not_____buy?
| A．which, otherwise | B．that, therefore | C．who, moreover | D．what, otherwise |
The school ______Elias studied for only two years was three miles away.
| A．where | B．that | C．on which | D．which |
Thank you for the great trouble you ______to find us the right person for the job.
| A．had | B．took | C．got | D．made |
–Could I borrow your computer?
--_______.
| A．Help yourself. | B．Make yourself at home | C．By all means. | D．Never mind. |
It’s quite obvious that the aging population in China will cause _____heavy pressure on _____whole society in the future.
| A．/, the | B．the, / | C．a, the | D．a, a |