High﹣speed trains， Mobile payment， Sharing bikes and Online shopping are called "four new great inventions" of modern China．
They____our daily lives more convenient．（ ）
A．have madeB．had made
C．have been madeD．made
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