_____ Li Lei and Wang Lin from China?
A. Is
B. Are
C. Does
The sun _____ in the east.
A. rise
B. rose
C. rises
She _____ have a little brother. She is the only childin her family.
A. isn’t
B. don’t
C. doesn’t
When Bill _____, please ask him to wait for me.
A. comes
B. coming
C. came