New medicines and instruments ______ every day to extend life.
The hotel has been enlarged; ____, its service is improving.
— Hey! Everyone in the office was at the dinner party in honor of Mr. Charles except you. What happened? — I ______ after Mike, my colleague. He was badly ill.
The roads are linedtrees,which have been planted to holdthe strong winds from the north.
_______along the quiet road at forty miles an hour, and then an old man suddenly started to cross the road in front of me.
As soon as the waiter came to the table, the foreigner _______next to me asked him_______to call that big dish in Chinese.