If you meet trouble, you can ______ your friends ________ help.
---May I have a look at your plan for the robot ?----Sorry ,I’ve _____ it at home .
----Which of the two pairs of shoes will you take ?----I’ll take _____ .They are too small for me.
—What about playing football this afternoon, Sam?—I would rather at home than football. It’s too hot outside.
The cleaners make a great contribution to _____ the city clean.
He is a writer _____ a singer.