Now most families have only one child _____ our country’s one-child policy.
--- Which do you prefer, tea____________ coffee?---Tea, please.
Lucy lived in Beijing from 2008____________ 2012.
I can't find my pen. Could you help____________ find it?
-TV says there will be a storm tomorrow.-- ________I planned to go climbing with my classmates.
I still remember the college and the teachers ________ I visited in London years ago.