The project has to be stopped if problems keep ______ like this.
A. arriving
B. rising
C. raising
D. arising
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We must _______ that the experiment is controlled as rigidly as possible.
A. assure
B. ensure
C. secure
D. insure
Nobody knows what _______ the change in his political thinking.
A. brought forth
B. brought about
C. brought out
D. brought up
I remember seeing him at a party, but I can’t _______ exactly where it was.
A. restore
B. know
C. recall
D. recognize
To keep society in good order, it is necessary that everybody ______ the laws.
A. accept
B. admit
C. concede
D. obey