1/ Alexander Graham Bell invented telephone.
Alexander Graham Bell was .. invented telephone..
2/ Let's meet inside the center , at the cafe's corner
How .. about meeting inside the center, at the cafe's corner..
3/ You went to see the movie Dream City last night didn't you ?
Did .. you went to see the movie Dream City last night ?..
4/ I'll telephone you tomorrow morning .
I'll give ...you telephone tomorrow morning...
5/ He failed the exam because of his laziness.
Because he .. was lazied, he failed the exam..
6/ The front yard isn't too small to play soccer in .
The front yard ... isn't small enough to play soccer in.
7/ It isn't necessary for you to set off early.
You don't ..necessary to set off early...
8/ Would you like me to call Linh ?
I'll .. call Linh ..
9/ I had a cat once, but I don't any more.
I used... to have a cat once..
10/ We started living here fifteen years ago
We have .. lived here fifteen for fifteen years..
11/ The last time she visited me was five months ago
She hasn't .. visited me for five months..
12/ I last wrote to my uncle in July.
I haven't .. written to my uncle since July..
13/ It's a long time since we became close friends.
We have .. became close friends for a long time ..
14/ Minh began to collect stamps in 2000.
Minh has .. collected stamps since 2000..
15/ It's three years since I last saw Nam .
I haven't .. seen Nam for three years ..