Every day students in our school will do outdoor activities ______ there is a heavy haze(雾霾).
| A．unless | B．while |
| C．until | D．since |
—I have bought a nice dress．
—Where________you________it？
| A．have；bought |
| B．did；buy |
| C．will；buy |
| D．do；buy |
He wants to________you on the question of how to learn English well tomorrow．
| A．get back |
| B．talk with |
| C．tell |
| D．speak |
Have you ever been to Shanghai________？
| A．a month ago |
| B．yesterday |
| C．ago |
| D．before |
—Have you locked the windows________？
—Yes，I have________locked them．
| A．already；already |
| B．yet；yet |
| C．yet；already |
| D．already；yet |
When you travel to a city，you’d better buy a________to take photos．
| A．newspaper |
| B．suitcase |
| C．guidebook |
| D．camera |