Question 13: We have prepared for the test carefully, so now we feel _________.

A. friendly

B. confident

C. confused

D. nervous

Question 14: I am talking to the student _________ called me last night.

A. who

B. whose

C. whom

D. which

Question 15: My friend drives the car _________ than I do.

A. as carefully

B. more carefully

C. the most carefully

D. carefully