问题
选择题
The boy pretended ______ his homework, when his parents came back home.
A．to do
B．do
C．doing
D．to be doing
答案
答案：D
假装正在做什么，应该用进行时态。
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The boy pretended ______ his homework, when his parents came back home.
A．to do
B．do
C．doing
D．to be doing
答案：D
假装正在做什么，应该用进行时态。