Susan came to the party yesterday, but it was already half past eight ______she turned up.
Mr. Zhang once taught in a remote village in Anhui province as a volunteer, which was ______ only on foot.
This nationwide smog should serve as a reminder to all, indicating a high time that we ______ on what we've done to the environment.
The terror attack at a Kunming railway station in southwest China's Yunnan Province, 29 lives and leaving 143 , has brought condemnation from around the world this week.
I have a big dream — I want to go into space, _______ will take some time to realize, I guess.
Wherever he is, he makes ______ a rule to give his mother a call every day.