--Hello,Tom._____. --Nice to meet you,too.
__________ useful advice he has given us!
I didn’t know when he _____ back. He said he would call me when he _____ home.
Four days __________ enough for us. We still need ________ two days.
The big fire hasn’t been __________ yet?
We will never forget those happiest days _______ we spent on the summer camp.