() 30. Bill has made great progress the help of his teachers.

   A. for   B. with   C. under   D. of

() 29. —I left my keys in the room yesterday. I have to get in the window.

—It's dangerous to do that.

   A. in   B. through   C. over   D. to

() 28. We can be thankful every day,not just Thanksgiving Day.

   A. in   B. on   C. to   D. by

() 27. Could I have an early morning call six o'clock tomorrow?

   A. on   B. to   C. at   D. in

() 26. Don't drive so fast!We must slow down when we drive the tunnel.

   A. past   B. across

   C. over   D. through

() 25. —Why are you standing here,Alice?

—I can't see the blackboard clearly. Two tall boys are sitting me.

   A. behind    B. next to

   C. between   D. in front of

() 24. It's very convenient us to buy train tickets now because we can buy them either from the station or on the internet.

   A. to   B. of   C. by   D. for

() 23. —Look at that photo. What a happy family!

—Yes,it's a photo my family.

   A. at   B. for   C. of   D. in

() 22. —Do you believe that paper is made wood?

—Yes,I do. And you can see that books are made paper.

   A. from;from   B. from;of

   C. of;from     D. of;of

() 21. —Why is Harvey's mother so happy?

—Because only three students , his son Harvey.

   A. failed the exam;besides

   B. made progress;except

   C. made progress;including

   D. passed the exam;without