—Is your brother at home?—No.He _______ the library.—Is your brother at home?—No.He _______ the library.A.was going to B.has been to C.has gone to D.went to 为什么选 C而不选A,B,
问题描述：
—Is your brother at home?—No.He _______ the library.
—Is your brother at home?
—No.He _______ the library.
A.was going to
B.has been to
C.has gone to
D.went to
为什么选 C而不选A,B,
答