TENSE COMBINATION (Sự kết hợp thì):
1: I will give him your regards
A. although I have seen him 
B. after I had seen him
C. until I will see him 
D. when I see him
2: You can always find beauty
A. wherever you go
B. although you have gone 
C. as long as you had gone
D. when you went
3: Customers buy less products 
A. as long as prices went up
B. whenever prices goes up
C. although prices has gone up
D. since prices had gone up
4. I really didn't like the movie
A. until the acting will be good
B. after the acting has been good
C. though the acting was good
D. because the acting had been good
5: I think I'll knit a warm sweater 
A. when I will be always cold in winter
B. because I'm always cold in winter 
C. provided I had been always cold in winter
D. so that I was always cold in winter
6: I will come back to you
A. until you finished your exercises
B. when you were finishing your exercises
C. after you had finished your exercises
D. when you have finished your exercises
7: My nephew was still unhappy
A. although he was wealthy
B. until he has been wealthy
C. because he has been wealthy
D. as long as he had been wealthy
8: They discovered that their house had been turgled 
A. After they have returned from the trip 
B. As soon as they retured from the trip
C. while they were returnng from the trip
D. before they returned from the trip
9: The ancient place is still popular with modem tourists 
A. as soon as it was Building thousands of years ago 
B. after it had been built thousands of years ago
C. although it was built thousands of years ago
D. when it was built thousands off years ago
10: You will not know who your true friend is
A. as soon as you had trouble and needed help
B. when you were having trouble and needing help
C. until you have trouble and need help
D. after you had had trouble and needed help
11:______, we'll go out for a drink.
A. After you had finished worked
B. When you finished work
C. As soon as you finish work
D Once you finished work
12: A few months ago I moved in a very small flat ______ for years with my parents.
A. before I was living
B. after I have lived
C. after I had lived
D. before I had lived