Joined by their friends, Troy and Carmella staged a musical _____ their experiences, hopes and fears aboutthe future. [ ]

It’s very dangerous when you drive your car________ a certain speed.

Compared with the generation of our grandparents, who grew up in an age when people were lack of almost every kind of materials, we should be content with the________ supply.

I’d like to go hunting with you， but I have a meeting ________.—If you don’t go， __________.

Is it in the factory _____you visited last week _____this kind of car is made?[ ]