Excuse me, does Mr. Chen live here?—He ______ be here, but he has moved to Nanjing.

Look! The students are playing on the playground. Some are running, some are playing basketball, ________ are watching.

I like red best. What about___________?—My favourite colour is orange. It represents joy.

Whatdoesyourbrotherdo? —Heisuniversitystudent.

________ old man behind Mary is ________ university teacher.