Which is a traffic sign?
--- _______ Jim _______ Tom went to watch the movie.--- What a pity! They missed such a wonderful movie.
---All the students in the class went to the Great Wall ________ Jack. Why?--- Because he was ill in hospital.
I found ________ difficult to make friends with him because he is very shy.
--- What happened _________ you ________ April Fool’s Day?--- I was fooled by my little brother.
--- __________ bad weather! We can’t go on a picnic.--- What about reading some interesting books at home.