He had supper with us yesterday.It’s very good supper.

The author of the article believes that it is the test system, ______ teachers, that is responsible for the heavy burden of the middle school students nowadays.

Let’s go and play ________ table tennis. I don’t want to play ______ guitar.

Was it in 2002 __________ he was still at middle school __________ the boy became expert at computer?

The ______ boy was last seen ______ near the gate of the park.