Everyone likes to live in a house ______ windows face the south.

Have you got any idea for the summer vacation?—I don’t mind where we go ______ there’s sun, sea and beach.

Mike, please don’t play games on the phone in class.- .

If our product ____ unsatisfactory within 7 days in any way, you can take it back.

The experiment was not successful.— I suggest you _____ again. [ ]