Beth has a beautiful ________．Listen!She is singing beautifully．（ ）
| A． |
sound |
B． |
voice |
C． |
noise |
D． |
look |
When you are in your school dining hall during lunchtime， you may not feel lonely _______ you can find someone to have lunch with．（ ）
A．ifB．unlessC．afterD．because
I didn't see you ____ in． You must have been very quiet．（ ）
A．comesB．to comeC．comeD．have come
Of all the blue holes in the world， Sansha Yongle Blue Hole in the South China Sea is now ____． It is 300.89 meters deep．（ ）
A．deeperB．very deep
C．as deep asD．the deepest
They ____about a comedy this time yesterday．（ ）
A．were talkingB．are talking
C．have talkedD．will talk
Jane ____ to call me last night， but she didn't．（ ）
A．supposedB．supposes
C．was supposedD．is supposed