They ______ a tent and got ready for the night when evening came.
| A．put off | B．put up | C．put on | D．put out |
We were delayed at the airport. Otherwise, we_______ here by lunch time.
| A．must be | B．must have been |
| C．would be | D．would have been |
When _____ with prices of goods, the quality of the goods has to be taken into consideration.
| A．compared | B．comparing |
| C．to compare | D．being compared |
— This apple pie is too sweet, don’t you think so?
— ____________. I think it’s just right, actually.
| A．I hope so | B．Not really |
| C．Sounds good | D．No wonder |
Not until all the fish died in the river ____________ how serious the pollution was.
| A．did the villagers realize |
| B．the villagers realize |
| C．the villagers did realize |
| D．didn’t the villagers realize |
If he ___________ my advice then, he would not be in trouble now.
| A．should take | B．took |
| C．could take | D．had taken |