Question

We didn’t know you were in trouble at that time, _______ we would have given you a hand.

A．therefore

B．unless

C．otherwise

D．so

Answer 1

C

試題分析：句意，我們不知道你在那個時候有困難，不然我們就會幫助你。therefore 因此 unless 除非 otherwise 否則 so 因此，根據題目意思，故選 C，
點評：解答此類題型首先要確定上下文關系,根據前后文關系確定適當連詞，一定要把題干看完整，不可斷章取義。