一What will the weather be like tomorrow?一It     be rainy ,cloudy or sunny．Who knows? Even the weather report is not always right.

— Mr. Wang, I got zero on Answering Sheet One. Could you help me correct it?— I’m sorry, but it ______ be marked by the machine. Mark your test number with a pencil 2B next time.

— Dad, must we wait until the light becomes green? — Yes, I’m afraid we ______. That’s the traffic rule.

I’m fond of my sister, but she has a serious shortcoming. She _______ be really stubborn.

--Whose T-shirt is this? --It ____ be John’s. It’s ______ small for him.