In the world, more than 30% of schools do not provide safe drinking water ______ about 570 million children. ( )
A.withB.forC.towards
He used to arrive late last year,but now he ______.( )
A.hasn'tB.doesn'tC.isn'tD.wasn't.
My mother cooks delicious food every day.I've ______ six pounds.
I think you should do more exercise.( )
A.put awayB.put offC.put onD.put up
You look tired.What's wrong?
I didn't go to bed ______ I finished watching "In the Name of People" last night.( )
A.untilB.ifC.thoughD.unless
Must I hand in my book report today,Mr. brown?
No you ______.The book report is due in two weeks.( )
A.can'tB.mustn'tC.shouldn'tD.needn't.
Miss Zhang teaches ______ English.She's very strict.( )
A.ourB.weC.usD.ours