Going to school _____ breakfast is bad _____your health.[ ]

We’ll have a hiking trip, but when shall we meet? —Let’s make it ______ half past eight ______ the morning of June 21. [ ]

Listen! Is that Millie singing?—No. It _____ be Millie. She has gone to Beijing.

Great honors will be given to ______ have successfully rescued the victims of the earthquake.

Oh, it’s raining very hard! Our sport meeting has to be till next Sunday.