问题

Please find more limericks _____ the Internet and learn them _____ heart. [ ]
A: on, by
B: in, by
C: on, in
D:by, on
B: in, by
C: on, in
D:by, on
正确答案是:
同类题型
___do you go to see your grandparents in your hometown?—About once a month.[ ]
_____the clothes line, the girl who jumped from the fifth floor didn’t die (死). [ ]
Could we see each other at nine o’clock tomorrow morning? —Sorry, let’s make it ______________ time.