问题
选择题
At the shopping centre, he didn’t know what _____ and _____ with an empty bag.
A．to buy; leave
B．to be bought; left
C．to buy; left
D．was to buy; leave
答案
答案：C
“在购物中心他不知道买什么，空着包走了。”第一空疑问词+不定式作宾语，第二空和didn’t know并列作谓语，答案C。