_________ it comes to traffic rules, I often come across such cases __________ the local drivers obviously know them but won’t follow them.

Regardless of the sign ____“stop”, he intended to drive ahead but was prevented by a policeman.

下列各句中，没有语病的一句是（ ）

Though __________， he still earned a lot of money to support his family.

It’s hot. Would you like some icecream?—I’d like some, but I’m ________.