Tom wants to know if you _________ a picnic next Sunday.– Yes. But if it ________, we’ll visit the museum instead.

Is the girl in the red skirt your sister?—No. It _______ be her. She has flown to Australia.

Millie often goes to school by bus but ________her mother drives her to school.

__________our surprise, Wang Ning didn’t pass the English exam. [ ]

I usually watch sports news _______ Saturday, but we’ll have a match _______ this Saturday evening. [ ]