____the letter, he went out to post it,
| A．Finished | B．Being finished | C．Having finished | D．After finished |
While shopping, people sometimes can’t help _____ into buying something they don’t really need.
| A．to persuade | B．persuading |
| C．being persuaded | D．be persuaded |
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 |