．一 Tony is such a selfish person．
一 I agree. Never again ________ with him.

___he met with the difficulty did he realize the importance of our help.

________ there, the southwest desert contains a remarkable variety of plants.

_________ that Tom got inside the room to see what was going on.

I would have paid a visit to you _______ possible.

––– I felt left out at the party last night.
––– Really?  ____, you should have said something.

--- We give dogs time, space and love we can spare.
---         . Dogs are always our loyal friends.

_________ it with me and I’ll see what I can do.

Not only _____ a promise, but also he kept it.

---- Your father is very strict with you.      
---- ____. He never lets off a single mistake of ours.