问题
选择题
“It’s a secret. Promise no one else would know it”, he lowered his voice and whispered ____ no one could overhear it.
A．in case
B．even if
C．so that
D．just as
答案
答案：C
短语辨析。A. 万一；假使 B.即使；虽然 C.以便；所以 D. 正如。句意：这是一个秘密。保证没有其他人知道。他压低声音低声说，以便没有人能无意中听到。选C。