We don’t know __________ he can make a plane by himself. It is amazing.
----Would you like to go to the amusement park? ----If Jack does, __________.
Because of the bad weather, we have to _________ the meeting till next week.
----Whose book is this? ----It _______ our geography teacher’s. You see, his name is on it.
It seems that the aged people _________ the H7N9 more easily from the recent cases.
---I’m very sorry. I broke your tea cup. ---________.