When spring comes，trees begin to ________ green．（ ）
A．soundB．tasteC．keepD．turn
There are about eight hundred students in the school of them are boys．（ ）
A．Three fifthB．Third fifth
C．Third fiveD．Three fifths
I hate sweeping the floor．
Why not buy a sweeping robot？ It ____widely nowadays．（ ）
A．useB．is usedC．was usedD．used
I'm planning a trip to the National Mining Park （国家矿山公园） tomorrow， but still can't decide ．
How about driving？（ ）
A．how I'm goingB．where I'm going
C．when I'm goingD．who I'm going with
Angela， I want to make Russian soup． Would you please tell me how？
I'm glad to． First， you need to____ the vegetables and beef．（ ）
A．cut upB．cut downC．cut offD．cut out
Mom， I watch TV tonight？
Sure，but you finish your homework first．（ ）
A．can； mustn'tB．may； could
C．may； can'tD．can； must