7.---- Henry has been teaching English in Beijing University for many years. ---- It’s no _________ he can speak Chinese so well and idiomatically.
——Your neighbors may __________you with playing your radio too loudly at night. ——I know. They never say anything that ___________ me especially.
I won’t call you, ___________ something unexpected happens.
It is better to ask someone for advice rather than ___________something.
---It’s a long time since I saw my sister. ---___________ her this weekend?
——I’m sorry that I didn’t work out this problem. ——It’s ___________our ability. I didn’t work it out, too.