It was already dark. Then,I wonder how she ______ through the forest by herself.
A.dared not to go B.dare going C.not dare to D.dared to go
AI will surely be a feature of future life, but it _____ be used responsibly and in a proper way.
A.can B.need C.must D.will
—Must I hand in the homework right now?
—‘That’s the rule． ____________
A.Yes，you can． B.No，you can’t．
C.Yes，you must． D.No，you mustn’t．
More and more countries have come to realize that the world____ do without Huawei and its "more advanced" technology.
A.can’t B.needn’t C.mustn’t D.shouldn't
The phone is ringing! ________ it be your teacher Shawn? He was looking for you the whole morning since you’ve got so many Fails!
A.Can B.Would C.May D.Will
He ______ writing the paper now. He hadn’t written a single word when I left him ten minutes ago.
A.shouldn’t be B.can’t have finished
C.can’t be D.mustn’t have finished
