从下面每小题的A、B、C、三个选项中选出最佳选项，并在答题卡上将相应的字母编号涂黑。（共15小题，每小题1分）
Perhaps he will go for a walk after dinner.
A. Maybe           B. However         C. In fact
Old people prefer to live in the countryside.
A. outside the city     B. in the hills      C. in the city
Long time ago, dinosaurs all died out suddenly.
A. went out          B. kept alive     C. disappeared
The poor family lived in a tiny house in the country.
A. very small        B. very big          C. very good
It is easy for Henry to operate the machine.
A. fix             B. make…work       C. produce
Lijiang is a nice place for sightseeing. In addition, it is great for living.
A. At first         B. Besides that        C. For example
From an early age, Da Vinci had an interest in painting.
A. A long time ago    B. When he grew older    C. When he was very young
The passengers are from America, Canada and England.
A. people on bus       B. drivers         C. visitors
There are more than 5,000 students in the school.
A. less than          B. over           C. just
It’s very important for a human being to be polite.
A. person            B. animal         C. plant
When I arrived at school this morning, there was nobody there.
A. someone       B. no one       C. anybody
Tom is old enough, so he has the ability to dress himself.
A. can        B. will        C. should