1.Do you know __last night?

1.Do you know __last night?
1.Do you know __last night?---sorry,l don't know .But l think he should go to bed early because he will have an English exam this afternoon.
A when he goes to bed.B.when he went to bedC.when did he go to bed
2.You look sad,Kate.---Yeah,i have made __mistakes in my report.
A.a little B.little C.a few
3.A__school boy,Li Lida,first tried to swim across the Qiongzhou Channel in June ,2000
A.12-year old B.12-years-oldC.12-year-old
4.My home is about __from my school.
A.15 minutes B.10minute's rideC.20 minutes by bike