Did you callon any of your old friends when you returned to your hometown—_______ ofthem They were all very busy

After the education reform(改革) in Jiangsu Province, the pupils have_______ time to relax and _______ homework to do.

下列各句中，没有语病的一句是（ ）

Do you have any idea what your former boss would say about you? —I don’t know，________.

The public is requiring the Malaysian government to share________ Flight MH370.