选词填空,请用以下短语填空 give birth to; give away; give back; give in; give off; give out; give up Stephan always said that he would never use Facebook, but he finally when all of his friends started using it to keep in touch. The runner's knee when he had less than one mile to go, so he wasn't able to finish the race. There is no sunlight under the sea, but some fish are able to their own light. I ! I can't do this homework. It's too difficult. The factory a terrible smell in summer. Mandy didn't want to know if her baby would be a boy or a girl before she it. But the doctor accidentally when he said "she" instead of "it". Please that book when you have finished it.