Question

【题目】—Do you think Jack will catch up with us?

—I believe so. he loses himself in computer games.

A. If B. Unless C. Or

Answer 1

【答案】B

【解析】句意：——你认为杰克能赶上我们吗？——我相信能，除非他迷上电脑游戏。A. If 如果，是否； B. Unless除非； C. Or否则；根据I believe so.和 he loses himself in computer games.可知是除非迷上电脑游戏；故选B