—Liu Ming,is that our headteacher 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
—When will she go home? —She ______ home ___ she finishes her homework.
What ____ you ______ at this time yesterday?
—I can’t find him. What should I do? —Maybe you should ____.
My watch is broken. I ask my father to ____________.
.useful invention the computer is!