The book tells ____life story of John Smith ,who left _______school and worked for a newspaper at the age of 16.
Taiyuan,a city in North China,was struck by a heavy snowfall last week,________serious traffic problems.
It was not until the beginning of the twentieth century________to explore space.
A notice was________in order to remind the students of the changed lecture time.
It took________supplies to construct these energysaving houses. It took brain too.
Since you weren’t at the meeting, we the decision without you.