单项选择题
A．critically B．helplessy C．politely D．quickly
We had trouble finding a pure water supply（）A．typicalB．...
单项选择题We had trouble finding a pure water supply（）
A．typical B．complete C．clean D．clear
On the table was a vase filled with artificial flowers（...
单项选择题On the table was a vase filled with artificial flowers（）
A．wild B．fresh C．lovely D．false
He kept in constant contact with his family while he wa...
单项选择题He kept in constant contact with his family while he was in Australia（）
A．gradual B．regular C．direst D．occasional
