— Where is my English book?
— I brought it to you _____you were in hospital yesterday afternoon.
| A．since | B．if | C．once | D．while |
He felt so proud as the audience were shouting loudly __________ his performance.
| A．to applaud |
| B．applauding |
| C．cheering |
| D．to cheer |
The river forms the __________ between the heavy industrial and light industrial areas of the city.
| A．division |
| B．gap |
| C．separation |
| D．interval |
Measures have been taken __________ the spread of the HIV.
| A．arresting |
| B．arrested |
| C．to arrest |
| D．for arresting |
In __________ preparation for Shenzhou If, scientists need __________ knowledge of weather changes.
| A．the; the |
| B．a; / |
| C．/; a |
| D．the; a |
—Thanks so much for everything. You have certainly made my stay very pleasant.
—__________.
| A．It's my duty |
| B．It's all right |
| C．It's my pleasure |
| D．It doesn't matter |