one swallow can never [ ]a summerA;haveB;makeC;becomeD;turn必须有理由

问题描述:

one swallow can never [ ]a summer
A;have
B;make
C;become
D;turn
必须有理由

B
One swallow does not make a summer. 一燕不成夏。

选B
One swallow does not make a summer.[谚]一燕不成夏; 不可凭偶然现象而推断.