--- When shall I pay the bill?
---Don’t mind it, sir.__________.
| A．Please come at your convenience | B．Till you are convenient |
| C．You’ve got to pay it right away | D．I don’t mind it either. |
Mr．Shaw can’t get promotion ________ his lack of qualifications．
| A．thanks to | B．for | C．because | D．because of |
They are _______ little children that you can’t blame them ______ much．
| A．so; so | B．so; too | C．such; too | D．such; such |
The building ______ next year will be a restaurant．
| A．having been built | B．to be built |
| C．being built | D．built |
---I fell off my bicycle and broke my leg yesterday．
---Is that ____ you drank too much？
| A．why | B．how | C．because | D．when |
_______ no buses , we have to walk home．
| A．There were | B．There being | C．It was | D．It being |