To be on the safe side, we should fill up the tank now, because we ______ run out of gas on the way.
| A．can | B．would | C．might | D．should |
I can’t remember _____ made the teacher give Mary the permission to leave the class earlier.
| A．that it was what | B．what it was that | C．what was it that | D．that was it what |
The thief was brought in, his hands ____________ behind his back.
| A．had been tied | B．tied | C．being tied | D．having tied |
---Would you have helped her had it been possible?
---Yes, but I __________ busy with my work.
| A．was | B．had been | C．have been | D．am |
It’s __________ great fun to talk with you.
| A．a | B．the | C．/ | D．an |
. --- Hi, David, I heard you wen to Paris last week, _________ ?
---It was pretty cool when I got there.
| A．How do you find it? | B．What if |
| C．What time is it? | D．What’s the weather like? |