“How long ____ each other before they ____ married?” “For ab

7.-----How long ___ each other before they __ married ---how long ___ each other before they ___ married How long ____each other before they _____ married known,how long,have they,each other How long should a couple know each other before they get mar they match ____ with each other They ____ each other for at least two months A.haven't seen 英文单选：They often help ____ other.A:one B:each C:every D:for ____ they read the book before?参考答案填Have,那么填How long did 为什么 How long ____ she _____.填has married 还是 has be married they hadn'tseen each other for a long time.意思 the two friends______each other for a long time before they