[ Grammar ]
Listen! I (think)————- someone (knock)———at the door
A. thinking – knocking
B. think – knock
C. think – is knocking
D. think – knocking
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Vocabulary and Grammar › ViewWhat would you say to express sympathy for an injury?
A. I’m sorry to hear that.
B. That’s your problem.
C. Why didn’t you be more careful?
D. You shouldn’t do that again.
Grammar › View
Although the alcohol level in beer ___ ranges from 4-7%, it can go as high as 15%.
a. usual
b. unusual
c. usually