—Let's go Dutch for this supper，OK?
—No，________ this time，as a reward for all your help.
A．it's my treat B．it's up to you
C．let's talk about it D．it doesn't matter
John went to the hospital alone. If he_______ me about it, I would have gone with him.
A．should tell B．tells C．had told D．told
When you _____ into the gallery, you feel as if you____ inside a fragile, white seashell.
A．walking, are B．walked, were
C．walks, are D．walk, were
The father often buys his son English learning materials, ____at encouraging him to learn English.
A．aim B．aimed C．to aim D．aiming
---You seem used to sleeping in the street.
---Oh, no. ______, I hate it, but I have nowhere to go for shelter.
A．On the other hand B．On the contrary
C．It depends D．Generally speaking
One of the sides of the board should be painted yellow，and________.
A．the other white B．another white
C．the other is white D．another is white
