—May I open the window to let in some fresh air ?
—_____.
| A．Come on ! | B．Take care ! | C．Go ahead ! | D．Hold on ! |
— What does the sign over there read?
—“No person __________ smoke or carry a lighted cigarette，cigar or pipe in this area.”
| A．will | B．may |
| C．shall | D．must |
In order to in a short time, the actress ate a large amount of food
much fat and protein(蛋白质).
| A．put on weight; contained | B．put on weight; containing |
| C．lose weight; containing | D．lose weight; contained |
It seems ________ our team is going to win.
| A．even though | B．when | C．if | D．as if |
—How many practical plans has your deskmate made this week?
—. All have turned out disappointing.
| A．None | B．Nothing | C．Nobody | D．No |
The best times to visit Shangri-la are spring and autumn ____ the temperature is at its mildest.
| A．when | B．where | C．that | D．which |