Look at that little boy wandering about—perhaps he ______ his mother.

单项选择题People have always been （） about exactly how life on earth began.

A. curious
B. excited
C. anxious
D. careful

单项选择题It is obvious that nobody wants to make friends with the poor boy______money.

单项选择题One of the few things you say about English people with certainty is that they ______ talk a lot about the weather.

单项选择题When I came back, I found my bicycle was ______.

单项选择题It is said that a grave of a middle aged man ______ about 2,300 BC was found by some English archaeologists in the year of 2002.