--I’ll go on a trip to Hainan during the winter holiday.----- It’s a good to be on holiday there in winter.
--- I don’t know if he ____. --- He’ll come if it ___.
It has been five years ____ I came to this school. for B. since C. whether D. when
I’ve never seen ___ nice photo before. such B. so C. such a D. so a
He’s very good at English. He spends most of his free time______ new words.
— Her uncle ___ to New York now, he ___ there twice. He’ll be back tomorrow.