By the time Juan gets home, his aunt _____ for Puerto Rico.
| A．will leave | B．leaves | C．will have left | D．left |
I made coat ________ my own hands. It was made ________ hand not with a machine.
| A．in; in | B．in; with | C．with; by | D．with; with |
A warning news report from Qatar announces that a group of Islam will continue to kill Americans wherever they are ________ they leave the Arab world forever.
| A．even though | B．in case | C．whenever | D．until |
— May I go and play football with Dick this afternoon, Dad?
— No, you can’t go out ________ your work is being done.
| A．before | B．until | C．as | D．after |
He waited ________ the volcano became quiet and he was able to return two days later.
| A．when | B．before | C．as | D．until |
She worked hard ________ everything would be ready by the time he came back.
| A．since | B．so that | C．as if | D．unless |