Mr Chen __________ his mobile phone to the shop because it can’t work at all.
In the nineteenth century, English became international language.
Which is the circuit diagram(电路图)of the picture on the right?
一Would you please help me with my writing skills?一_______.You can come to my office every Saturday.
—Peter has changed a lot, hasn’t he?—Yes.He used to _______ the guitar but now he is more ______ in playing soccer.
一Were you at home at 9:00 last night? I called you but nobody answered.—Sorry, I _______ at that time.