问题
选择题
Honesty is a basic element in friendsmaking and that is ________ it requires to keep everlasting friendship.
A．how
B．which
C．whether
D．what
答案
答案：D
表语从句中require后缺宾语，故选what。
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Honesty is a basic element in friendsmaking and that is ________ it requires to keep everlasting friendship.
A．how
B．which
C．whether
D．what
答案：D
表语从句中require后缺宾语，故选what。