sit in an office all day long and rarely _____,you’re likely to suffer from neck andback pains

There is no experience you can have ________ is more exciting than skating on real ice．

It is an interesting story and one can’t put it down _____ one has finished reading it.[ ]

下列各句中，没有语病的一句是（ ）

asses, _______ he could see nothing,was taken away by a naughty boy.