Why don’t we choose that road to save time—The bridge to it _____________

Heavy smog blankets Beijing．,city authorities start using its new smog warning system

Jack is a clever boy. He is good at all the subjects.-Yes. All of us want to recommend him_______ the Best Student Award.

Could you _____ take care of my cat while I’m away?—-Sure Leave it to me, please

It turned out that one of the children I thought a girl was________a boy[ ]