You couldn't be ____ when you drive a car.（ ）
- A.more careful
- B.least careful
- C.most careful
- D.careful
正确答案及解析
正确答案
A
解析
couldn't be+比较级，意为“再……也不为过”。句意为：你开车时再小心也不为过。
You couldn't be ____ when you drive a car.（ ）
couldn't be+比较级，意为“再……也不为过”。句意为：你开车时再小心也不为过。
