---Liu Ming,is that our headmaster Miss Chen over there ?-- It can’t be her . She _______Xiamen for a meeting.A. has been to B. has gone to C. has been away
_________ we are very young, _____________ we can speak English well.
Had he studied harder, he_______ the exams.
—Do you know________ ?—At 8:00 a.m.
Eating ________ and doing more sports are good ways to keep fit.
They told us there would be great changes in their city in ______ time.