精选优质文档-倾情为你奉上it的用法练习题（一）1.It took us over an hour _along the street.A. walk B. to walk C. walking D. walked2.I think it a great honor _to visit your country.A. to inviteB. inviting C. having invited D. to be invited3.Many people now make_a rule to buy cards for their friends beforeChristmas.A. themselves B. it C. that D. this4._is very clear to everyone that hes round and tall like a tree.A. This B. What C. That D. It
