网友您好， 请在下方输入框内输入要搜索的题目：
题目内容
（请给出正确答案）
You must take good care of the drainage cock of the air control system. Because lead scale formed which might malfunctions the pilot control valve and other instruments.
A.the temperature
B.the rust
C.the pressure
D.the humidity
参考答案
更多 “ You must take good care of the drainage cock of the air control system. Because lead scale formed which might malfunctions the pilot control valve and other instruments.A.the temperatureB.the rustC.the pressureD.the humidity ” 相关考题
考题
—Must I be in hospital for a week， Doctor? —No， you_________. You can go back home tomorrow.A. mustn’t B. needn’t C. must
考题
On Monday morning some teachers exchanged a few ().
A.how-are-yousB.of how-are-you’sC.how-are-you’sD.of how are you
考题
－－Must we finish our homework now? －－No, you ______. You _______ finish it after school.
A.needn't , mayB.mustn't , mayC.can't , canD.needn't , must
考题
“Must I finish my homework now?” “No, you() . But you() finish it this evening. ”
A. mustn’ t…mustB. needn’ t…mustC. can’ t…canD. can’ t…must
考题
9． _______you _______ stay at home today?A． Do ; have toB． Must; have toC． Have; toD． Do ; must
考题
—_______ I return the book to the library this week?— No, you _______.You can keep it until the end of this month.
A.Must; needn’tB.Can; can’tC.May; mustn’tD.Can; mustn’t
考题
3．—__________ 1 go out for a while?—No，you __________ You must finish your homework first．A． Must，needn'tB． Can，mayC． May，mustn'tD． May，must
热门标签
最新试卷