The use of computers has meant that students can study language programmes (23) _________ their own

* Hướng dẫn giải

Chọn đáp án D

-    force (n): sức, lực

-    hit (n): đòn, cú đánh trúng

-    depress (v): ấn xuống, nén xuống

-    push (n): sự xô, cú đẩy, ...

+ At the push of a button: very easily: rất dễ dàng

E.g: He could get everything he needs at the push of a button.