Look ! Mr Wang ______his students
--- Look at the boy running on the ground. Is it Frank? --- It ________ be him. I saw him go to the library just now.
Yesterday Li Ming went to the village ________ he visited five years ago.
--- _______ 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.