单项选择题
（） driving to work, Mr. Lead usually goes to his office downtown by train.
A．WithoutB．Instead ofC．In case ofD．In spite of
单项选择题 Nobody could （） a satisfactory explanation of the accident.
单项选择题 We have to get that car fixed （）.
单项选择题 When I was a child, I used （） to the river and bathe in the evening.
