Whose  book  is that ?It   _______belong to Linda .Look !Her name is on it .

－What does the sign over there say?－“No person _______ bring drinks into the student computer pool.”

--The weather has been very hot and dry.--Yes. If it had rained even a drop, things would be much better now! And my   vegetables   .

That man ________ be Mary’s father, as he is much taller.

—Why can your neighbor know so much about London?—He ____ have been there before.