---It’s very kind ____you_____ help me complete the difficult job.
--- You’re welcome.
A. to; for
B. for; of
C. of; to
The number of the students in our school____about 1000 and a number of them____boys.
A. are ;is B.is;is C.is;are
The book is worth____.
A. to read B.reading C.read
The river has become much ______ than before because of the waste water from the factories.
A. dirty B. dirtier C. Dirtiest
．一Would you please pass me something to drink?
一What about some＿＿＿?
A. green tea B. bread C．Fish
It’s raining. Please take ______ orange raincoat on the desk with you when you go out.
A. a B. an C. The