用所给动词的正确形式填空.1.We are going to _____ (have) a sports meeting next weekend.

用所给动词的正确形式填空.1.We are going to _____ (have) a sports meeting next weekend.
2.____ (be) you _____ (visit) Beijing next month?
3.—When _____ (will) your uncle _____ (come) back?
—He will come back this afternoon.
4.—What ____ you _____ (buy) for Kate next week?
—I don't know.Do you have any ideas.