－Oh, the traffic is too heavy.
－Let’s change ________route to the airport.

You are old enough to make decisions by __________.

—What’s that?
—_____ is an eraser.

Most students like dinosaurs, but ______ of them know the story of dinosaurs.

、—Help＿＿＿to some fruits.
—Thank you .
A. yourself B. your C. You

Nobody teaches me English. I learn it all by______. 

－Which do you like better, tea or coffee?
－____ of them. I like water.
A. All   B. Both    C. Neither

I think _________ necessary for students to take an interest in all subjects.

—Yesterday I lost my pencil sharpener.  I couldn’t find_______.
—Oh, it’s a pity. You’d better buy ________ this afternoon.

－What do you think of the four classics (名著)of China?
－I hear that they are wonderful, but I’ve read _______ of them.