题目内容
【题目】Chen Wei isn't at school today ________ he is taking a robot competition in Shanghai.
A.so
B.because
C.before
D.if
【答案】B
【解析】考查连词。句意：陈炜今天不在学校因为他在上海参加机器人竞赛。so所以；because因为；before在……之前；if如果。所以选B。
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题目内容
【题目】Chen Wei isn't at school today ________ he is taking a robot competition in Shanghai.
A.so
B.because
C.before
D.if
【答案】B
【解析】考查连词。句意：陈炜今天不在学校因为他在上海参加机器人竞赛。so所以；because因为；before在……之前；if如果。所以选B。