I have _______ food at home.
| A．lot of | B．lots of | C．a lot | D．a lots of |
Please call Mary _______ 354—6403.
| A．in | B．at | C．to | D．of |
Is_____ your aunt?
| A．he | B．she | C．his | D．her |
Tom and Mike are good friends. _____ often help each others.
| A．They | B．Them | C．Their | D．Theirs |
________ I finish middle school , I’ll go to a vocational school .
A. Before B. When C. After