Into the flat _______,who was quite excited when everyone shouted“Happy New Year”.
Who’s that boy reading in the garden? Is it David?— It ____________ be David. I saw him in the classroom just now.
There was a big fire in the street last night, but the firemen _______ within twenty minutes.
This is a map _____China. If you want to go traveling, you’d better take it with you. [ ]
There are three ________ students in their school.