He had promised me to come to the party, and _____.

Last night Mr. Crook didn’t come back at the usual time. ______, he met some friends and Stayed out until midnight.

I got to know him five years ago. We have been in close touch with each other ______.

_____, he together with his families ____ escaped from the shaking building when the earthquake struck Lushan County of Ya’an.

There was such a long queue for coffee at the intervals that we __________ have to give up.