_______ the school, he saw his parents ________ for him at the school gate.
| A．At reaching; waited | B．On arriving; waiting |
| C．At arriving; waited | D．On reaching; waiting |
The headmaster will __________ a speech to the visiting foreign guests this afternoon.
| A．deliver | B．address | C．announce | D．declare |
Why not try your luck downtown, Bob? That's __________ the best jobs are.
| A．where | B．what |
| C．when | D．why |
—Can we get everything ready by the weekend?
—It all depends on __________ we can get Mr. Green's cooperation.
| A．that | B．what |
| C．whether | D．if |
Though the twins look alike, they __________ in many aspects, especially in temperament and personality.
| A．range | B．change |
| C．choose | D．differ |
Let him __________；he is a man of __________ temper.
| A．alone ； variable | B．lonely ； various |
| C．alone ； various | D．lonely ； variable |