I _____ singing to dancing.

__It’s a lovely day，isn’t it?__ Yes.I love________when the weather is like this.Why don’t we sit outside and have our lunch?[ ]

Blue looks good _____ me while you look nice ______ pink.

It is _______ of the students to stay up reading till late night before the final exam.

It may be necessary to stop______in the learning process and go back to the difficult points in the lessons.