Câu hỏi :

Some people return to college as mature students and take full- or part-time training courses in a skill will help them to get a job. The development of open learning, (26)______ it possible to study when it is convenient for the students, has increased the opportunities available (27)_______ many people. This type of study was formerly restricted to book-based learning and (28)________ course but now includes courses on TV, CD-ROM or the Internet, and self-access courses at language or computer centers.

A. about

B. with 

C. to

D. by

* Đáp án

C

* Hướng dẫn giải

Đáp án C

Kiến thức: Giới từ 

Giải thích: available to someone: có sẵn, rộng mở cho ai đó

The development of open learning, (26)______ it possible to study when it is convenient for the students, has increased the opportunities available (27)______ many people.  

Tạm dịch: Sự phát triển của việc học mở, làm cho nó có thể được học khi nào thuận tiện cho sinh viên, làm gia tăng cơ hội có cho nhiều người.

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