I won’t call you, ________ something unexpected happens.
| A．because | B．whether | C．unless | D．while |
Was it on a lonely island __________ he was saved one month after the boat went down?
| A．where |
| B．that |
| C．which |
| D．what |
It was not until I came here __________ I realized this place was famous for not only its beauty but also its weather.
| A．who |
| B．that |
| C．where |
| D．before |
Father keeps impressing __________ me the importance of following others' advice wisely and correcting my mistakes in time.
| A．to |
| B．with |
| C．on |
| D．by |
—__________ he or his friends going to the party?
—He as well as his friends __________ going.
| A．Are；are |
| B．Is；is |
| C．Am；is |
| D．Is；are |
It's the second time that I __________ in Shanghai ！ What great changes have taken place in Shang Hai. It is ten years since I __________ it last time.
| A．have been ； left |
| B．had been ； left |
| C．have been ；had left |
| D．went ；had left |