Have you ____ joined in a dragon boat race?—Yes，I have．

. —Does he have a long ruler? —-No, he doesn’t.. He has a short _____.

The students from Xinjiang enjoy staying in our school because everyone is _____ to them.

What is on show in the museum?—The pictures which were taken by Yang Li Wei.

The police station is ___ the clothing shop ___ the post office. [ ]