Our usual walk is to or from the subway, ______ is how we get to work．

Here is a dog. Is it yours —Yes. It is very and can follow my directions(指示)。

It is reported that two schools，________ are being built in my hometown，will open next year.

at he has missed his ________, he’llhave to wait for the next round.

Do you get together with your old friends?—Yes, from time to time, but not ___ ___