Do you know _______ in Japan?
| A． when nuclear(核) accidents happened |
| B． when did nuclear accidents happen |
| C． when nuclear accidents happen |
| D． when do nuclear accidents happen |
Sina said she ______ to school the next Sunday.
| A．wouldn’t go | B．isn’t go | C．didn’t go | D．won’t go |
— Could you please tell me ?
— In three days.
| A．when will your course start |
| B．when your course will start |
| C．when your course started |
| D．when did your course start |
— It only takes me 20 minutes to get here by bike. Why don’t you ride a bike as I do?
— . I’m afraid I’ll have to ride a bike.
| A．I agree | B．I’d like to | C．I don’t think so | D．It’s not so easy |
I can’t tell when that house exactly, but it must be very long ago.
| A．is built | B．will build | C．was built | D．has built |
— you out the physics problem, Kathy?
— Not yet, but I’m going to.
| A．Do; work | B．Will; work | C．Had; worked | D．Have; worked |