The number of people invited _____fifty, but a number of them _____absent. [ ]

Alas! I have left my key to the office in my car.—Don’t worryI ________ it for youWait a minute

A high-tech exhibition ________in the National Museum nowLet’s go and visit it

I think a good friend should be __________ all his orher subjects.—I don’t agree. I don’t think grades are important ina friendship.

I haven’t got a partner _____.-Maybe you can ask John for help.