__________ in universities around the nation has more than tripled compared to this time last year.A. Enroll B. EnrollsC. Enrolling D. Enrollment
__________ in universities around the nation has more than tripled compared to this time last year.
A. Enroll
B. Enrolls
C. Enrolling
D. Enrollment
B. Enrolls
C. Enrolling
D. Enrollment
参考解析
解析：全国大学的入学人数已经是去年同期的三倍多了。本题要求选择enroll的适当词形。故选D。
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