HE USED TO DRIVE _____ THAN HE DOES NOW.A. ON B. AT C. IN D. NE...

31. - 30 BAI TRAC NGHIEM VOI KEYS FOR 9 P
30 BAI TRAC NGHIEM VOI KEYS FOR 9 P

31. He used to drive _____ than he does now.

A. on B. at C. in D. near

A. careful B. more careful C more carefully D. carefully