Question

When you cross the road, you should be _____ and walk _____

A．carefully; careful	B．careful; carefully
C．careful;, careful	D．carefully; carefully

Answer 1

B

考查形容词和副词的用法。句意“当你过马路时，你应该小心，并且要慢行。”be动词是系动词，后用形容词作表语，构成系表结构；walk是动词，副词修饰动词，故用carefully。故选B。