I don’t know if she ________ married whether she ________ me know.

Did you return from Shanghai on time?—No. The train________ I took was late because of the bad weather.

Don’t play a joke ________people in trouble.[ ]

It’s very kind _____ you to help me carry the boxes since it is difficult ______ a person like you to carry so heavy things. [ ]

Who will teach _______ oral English next term? Can it be a new teacher?— Perhaps. But our head teacher hasn’t told us ________ .