问题
The twin boys look sad. Let’s _____ .— OK!
A:used to； is used to walk
B:was used to； is used to walking
C:was used to； is used to walk
D:used to； is used to walking;
B:was used to； is used to walking
C:was used to； is used to walk
D:used to； is used to walking;
正确答案是：
同类题型
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