He liked to go to dances and parties, _____ he could have a good time just sitting and watching.
—What do you think made Liz so upset? —__________ her new bike yesterday.
With the time __________, our happiness grew.
When he was 20 years old, he __________ doctor in the village.
With the popularity of smartphones, the micro blog __________ a good platform for the young to show themselves gradually.
—What worried him so much? —His hair is __________ grey.