26My suggestion _____ John should be sent _____his mother works is reasonable

I wonder if the work can be completed in a month.— The work is progressing________schedule and should be completed within three weeks [ ]

Do you know __ ___— Sorry, I don’t. But I saw her just now.

We should play a part in ______ the earth.

How do Americans like to be called? -Most of them don’t object ________ them by their first names[ ]