What you _______ a few minutes ago while your sister _______ the dishes?
A. did...do-washed
C. were...doing-washed
D. were...doing-was washing
KEY: B
Giải thích: công thức QKĐ while QKTD
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Do you know two straight lines which _______ at a point _______ an angel?
A. met-formed
C. meet-have formed
D. meet-form
If Columbus _______ money from Queen Isabella, he _______ across the Atlantic.
A. do not receive/ could not sail
B. had not received/ might not have sailed
C. did not receive/ might not have sailed
D. would not receive/ might not sail
That boy is always _______ lies.
A. saying
C. telling
D. speaking
If someone gave you a boat, what________you_________?
A. do....do
C. would....do
D. did....do
Would I have had plenty of money now if I ___________ so much yesterday?
A. didn’t spend
B hadn’t spent
C. spend
D. was spending
St. Catherine’s Monastery Library in Egypt is the first in the world ___________in the sixth century.
A. to be built
C. to built
D. to have built
We intend to _______________with the old system as soon as we have developed a better one.
A. do up
C. do away
D. do down
Study much harder_____.
A. if you will pass the exam
B. unless you pass the exam
C. or you won’t pass the exam
D. and you pass the exam
Generally _______, she’s quite a good student.
A. talking
C. saying
D. telling
You would make better progress if you _____ class regularly.
A. attended
C. are attending
D. attend
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