---Why do you eat all the vegetables but leave ____ meat untouched?
---- I’m on ____ diet.
| A．a; the | B．the; / | C．/;a | D．the; a |
She can’t help ____ the house because she’s busy making a cake.
A cleaningB. to clean
C. cleanedD. being cleaned
He knows nothing about it, so he can’t help _______ any of your work.
| A．doing | B．to do |
| C．being doing | D．to be done |
Before going abroad he devoted all he could _______ his oral English.
| A．improve | B．to improve |
| C．improving | D．to improving |
He spent every minute he could _____ spoken English.
| A．practise | B．to practise |
| C．practising | D．practised |
They stayed up until midnight _____ the old year out and the new year in.
| A．and saw | B．to see |
| C．seeing | D．for seeing |