[ Conditionals ]
If we try to control pollution,it …………very expensive.
A. would be
B. will
C. is
D. will be
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Grammar › ViewI asked three people for directions to the public library, ……………………… were tourists.
A. all of whom
B. of whom all
C. all of them
IELTS Grammar › View
The new mechanic checked the car ___________________ than the old mechanic. (thoroughly)
A. more thoroughly
B. thoroughlier
C. the most thoroughly
D. as thoroughly as