How long_________each other before they_________married?—For about a year.

The girl was flying a kite ____________ her father came back.

.Many companies give away small quantities of their produce as samples ____ people can try them before buying them.

A lot of trees________ around here every year, and we can enjoy fresher air now.

Mr Li, I can’t understand everything in class.— Don’t worry! I’ll ______ the main points at the end.