11.It’s two weeks since they deaned their room.
They ________HAVEN'T CLEANED THEIR ROOM FOR 2 WEEKS___________
12.It’s over six months since John had his hair cut.
John _______HADN'T HAD HIS HAIR CUT FOR OVER 6 MONTHS_____________
13.How long is it since you rode a bicyde?
When _______DID YOU STARTED TO RIDE A BICYCLE?_____________
14.How long is it since he wrote to ỵou?
When _______DID HE STARTED TO WRITE TO YOU?____________
15.When did he last talk to you?
How long _______HAS HE LAST TALKED TO YOU?__________
16.When did you last telephone him?
Hong long _______HAVE YOU LAST TELEPHONED HIM?__________
17.We have never eaten this kind of food before.
It’s the ________FIRST TIME WE HAVE EATEN THIS KIND OF FOOD____________
18.This is the fìrst time I have seen this fìlm.
I have never ______SEEN THIS FILM BEFORE__________
19.This is the first time he went abroad.
He hasn’t ________GONE ABROAD BEFORE___________
20.She started driving 1 month ago.
She has _________DRIVEN FOR 1 MONTH___________
21.We began eating when it started to rain.
We have __________EATEN WHEN IT STARTED TO RAIN____________