问题
The old man used _____ in front of his house and he has got used to _______ like that. [ ]
A: to sit; doing
B: to sitting; do
C: to sit; do
D: to sitting; doing
B: to sitting; do
C: to sit; do
D: to sitting; doing
正确答案是：
同类题型
is planning to buy a car — I know By next month, he enoughfor a used one
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