—Do you believe that paper is made _____ wood?----- Yes, I do. And you can see that books are made ____ paper.
-How many books are there in the box?-_______.A. None B. No one C. No
There _________a book and three pens on my desk just now,but now there is nothing on it. A. had B. were C. was
Nobody except Tom and Mary _______in the classroom. The other students are watching the basketball game on the playground now.A. am B. is C. are
How time flies! We'll graduate. Three years really s short time. A. was B. are C. is
There________ many trees in front of my house now.