Have you returned the book to the library ____?
--- Yes, I have ____ returned it.
| A．yet, yet | B．already, already | C．already, yet | D．yet, already |
---Why not_____ us ?
----Because I have a lot of work______.
| A．to play; to do | B．play; to make |
| C．playing with; doing | D．play with; to do |
He____25 yuan buying this new book yesterday afternoon.
| A．spent | B．cost | C．took | D．paid |
It’s time for supper now. Let’sit.
| A．stop having | B．stop to have |
| C．to stop to have | D．stopping to have |
----______have you been learning to swim ? ----Half a year.
| A．How long | B．How often | C．How far | D．When |
----_______ did you start studying English ? -----Five years ago.
| A．When | B．How long | C．How often | D．What |