单项选择题
A.rapid burning causes it B.to be cause dby rapid burning C.causing it'burningtoberapid D.caused by rapid burning
Some say yes and others say no; I don't know （）to follo...
单项选择题Some say yes and others say no; I don't know （）to follow.
A.whether B.what C.whom D.how
Shall we request the chairman（）our suggestion again?A.t...
单项选择题Shall we request the chairman（）our suggestion again?
A.toconsider B.considering C.consider D.considered
She is very nice, but because she has a（）way of speakin...
单项选择题She is very nice, but because she has a（）way of speaking, she is slow in making friends
A.forbid B.forbidding C.forbade D.forbidden
