_______Wale_______at school，he would gain much higher a salary.
| A．Had;worked | B．If;worked |
| C．Did;work | D．If;has worked |
_____around the Water Cube, we were then taken to see the Bird’s Nest .
| A．Having shown | B．To be shown | C．Having been shown | D．To show |
—Go and have great fun! I will cope with _____ you leave to me properly.
—Thanks a lot.
| A．why | B．when | C．what | D．which |
－France ,a cab to school in such thundering weather.
—I will, Mom.
| A．gets | B．to get | C．get | D．getting |
Scientists say it may be five or six years _____ it is possible to test this medicine on human patients.
| A．since | B．after | C．before | D．when |
It was not he took off his dark glasses I realized he was a famous singer.
| A．when; that | B．until; that | C．until; when | D．when; then |