He didn’t listen to the teacher carefully in class.______, he couldn’t pass the exam.

Many animals sleep a lot when young, but sleep much less when they get older, just________is the case with human being

Would you like to go shopping with me—_________But I’m busy preparing for my test.

I like orange best. What’s your favorite ________

下列加点字的读音全都正确的一项是（ ）