题目内容
【题目】They were________their invention．They thought they could invent more things to make our life easier．
A．angry with
B．proud of
C．strict in
D．tired of
【答案】B
【解析】结合句意可知，他们为他们的发明感到骄傲，故be proud of符合题意。
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题目内容
【题目】They were________their invention．They thought they could invent more things to make our life easier．
A．angry with
B．proud of
C．strict in
D．tired of
【答案】B
【解析】结合句意可知，他们为他们的发明感到骄傲，故be proud of符合题意。