Rreferences of different kinds or types cannot co-occur in the same sentence.()
第1题
The critical age for language acquisition refers to the qualitative difference in language acquisition before and after the age around fifteen.()
第2题
Jack often complains____able to communicate with his parents.
A: of being not
B: of not being
C: being not
D: not being
第4题
________our expectation, the experiment turned out to be a complete failure.
A: Contrary to
B: Contrary with
C: Contrary against
D: Contrary for
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