What are you doing ,Jack? —I’m making a model carI _______ it in the science class at 10 o’clock tomorrow morning

You can’t predict everything.Often things don’t ________ as you expect. [ ]

Why do you like going to Kunming for a holiday—Because the weather there is _____too hot ______ too cold.

Why don’t you go out to have fun– You see, we are studying for the tests these days. And we are ______ tired _____ we can’t go out.

I saved money by using buses ________ taking taxis.