John has really got the job because he showed me the official letter __________ him it.
| A．offered | B．offering |
| C．to offer | D．to be offered |
____ he will come or not is still unknown.
| A．If | B．Where | C．That | D．Whether |
We offered him our congratulations ____ his passing the college entrance exams.
| A．at | B．on | C．for | D．of |
He will come ____ you ask him.
| A．whether | B．unless | C．if | D．while |
I made the coat ____ my own hands. It was made ____ hand, not with a machine.
| A．in; in | B．in; with | C．with; by | D．with; with |
Everything around us is ____ solid ..liquid ____ gas.
| A．not .. .but... | B．either.. .or... | C．neither.. .nor... | D．whether.. .or... |