I am decorating my office now. I _______ comfortably in my office at this time tomorrow.
| A．am sitting | B．was sitting |
| C．sit | D．will be sitting |
Every boy and every girl as well as some teachers who ___ to visit the museum _____required to be at the bus station at 6:30.
| A．are ; is | B．are ; are | C．is ; are | D．is ;is |
I’ll never forget such an attractive city ___ I spent many happy hours there with my classmates last summer holidays.
| A．that | B．where | C．in which | D．because |
______ , I think , and the problem could be settled.
| A．Making great efforts | B．So long as you keep up your spirits |
| C．If you double your efforts | D．A bit more effort |
At home, he keeps some pets, to which he _____ all his spare time.
| A．spends | B．offers | C．devotes | D．provides |
------Don't put the waste on the ground.
------Oh, I'm very sorry. I ____ the dustbin there.
| A．don't see | B．isn't seeing | C．didn't see | D．haven't seen |