问题
选择题
We didn’t know you were in trouble at that time; _______ we would have given you a hand.
A．otherwise
B．therefore
C．yet
D．however
答案
答案：A
考查词义辨析，otherwise 否则，therefore 因此，yet 还，however然而，句意：我们不知道你当时处于困境中，否则的话我们会帮助你的。所以选A。