问题

It’s really unwise of some teenagers from low-income families to spend a large sum of money on Apple products ______ they could buy other cheaper brands

A:unless
B:when
C:so that
D:in case

正确答案是：

同类题型

Andy, are those your storybooks —______________

Never before _________ seen anybody who can play tennis as well as Robert.

Published in 1974,the book was a(n) _____ success and was soon translated into thirteen foreign lanuages.

Tom’s father works ________ the chief engineer ________ a big company. He always works ________ high standards.

Researches are convinced ______ the positive effect of laughter ______ physical and mental health