—Has anyone taught him how to do it?—Sure. Lots of advice________, but he hasn’t made a decision.
—The Blacks have _________Hainan Island. —Oh,really? I have never_________there before.
- How long may I ________this book? - For about a week.
We have________ Shanghai since we saw you last month.
In fact,I have lived here ________ 2000.
His sister’s never been to the Summer Palace, ?