A (knowledge) of several languages is essential to the study of comparative literature because (without them) one can read (only) (in) translation.
A. knowledge B. without them C. only D. in
查看答案
(Let’s not) waste lime on (matters of no important). We have other (vital) problems to (deal with).
A. Let’s not
B. matters of no important
C. vital
D. deal with
I (remember) clearly (to return) the book to him last Wednesday, but now he (says) that (I didn’t).
A. remember
B. to return
C. says
D. I didn’t
(Passengers) (are warned) not to (get off) a bus while (moving).
A. Passengers
B. are warned
C. get off
D. moving
How (can) you do such (thing) (without) (permission)
A. can B. thing C. without D. permission