To be honest,the scientist to unknown to me.
| A．referring;being | B．referred;is |
| C．who referred;is | D．referred;being |
It’s an either-or situation——we can buy a new car this year or we can go on holiday, but we can’t do _______.
| A．others |
| B．either |
| C．another |
| D．both |
—I feel so nervous about the National English Speech Competition tomorrow.
—_______.
| A．I really envy you |
| B．Glad to hear that |
| C．Sounds great |
| D．Take it easy |
It was not until _______ that _______ to prepare his lessons.
| A．did his father come in; the boy began |
| B．his father came in; the boy began |
| C．did his father come in; did the boy begin |
| D．his father came in; did the boy begin |
In the summer months the difference in temperature between the south and the north can be ________ twenty degrees!
| A．as much as |
| B．as hot as |
| C．as many as |
| D．as far as |
________ I’m concerned, they have no way of keeping away from the danger.
| A．As long as |
| B．As far as |
| C．Just as |
| D．Even if |