— 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
— John, could you please the black-board now? It’s your duty today.
— OK. I’ll do it right away.
A.not to clean B.to clean C.not clean D.clean
— You used to the bus to school, didn’t you?
— Yes, I did. However, I am used to to school now.
A.take; walk B.take; walking C.taking; walking D.taking; walk