Mary, could you tell me if your mother _____ our school sports meeting tomorrow? –I think she will come to school if she _____ free.

Helen，my parents asked me to give you some flowers______ your birthday.—Oh，please say thanks______ me.[ ]

________ I swim here?—I’m sorry. Children _______ swim alone here.

My friend _______ to visit me in a week. –That’s good news for you.

One of the most important questions they had to consider was ______ of public health.