1.However fast he walked, we managed to _________with him.
A. catch on
B. keep up
C. carry on
D. hold up
2.They think their child gets a good _________at his school.
A. educate
B. educative
C. education
D. educator
3.“So you are a writer? How many books_________?”
A. have you written
B. have you been writing
C. did you write
D. were you writing