If you hear ___(介词)your friend ,you should write __(介词)time.
If you hear ___(介词)your friend ,you should write __(介词)time.
If you hear __(介词)your friend ,you should write __(介词)him.
____(介词)your good friend .I should help you.
I would like to talk ___ you if you have time(介词)
You should thank him ( ) repairing your bike 介词填什么?
your parents are the persons ___ you should write.
What should your friend do if you are sad?
You should give others advice ___ (介词)a gentel way
what can you see __ the picture ___ Page 38(填写介词)
What will you say to your fiend if you hear your friend has
You should ___ more __ your work than playing.
Do you hear a knock() thedoo介词