---Do you know ______famous tennis player named Li Na?---Yes. She plays tennis well.
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
Math one of the subjects in middle schools.