People often have this belief _______ development is bad for the environment, but this does not have to be true.
| A．whether | B．what | C．that | D．how |
All her time _______ experiments, she has no time for films.
A. devoted to do B. devoted to doing
C. devoting to doing
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。m | B．to improve |
| C．improving | D．to improving |
He spent every minute he could _____ spoken English.
| A．practise。m | B．to practise |
| C．practising。m | D．practised |
He ran as fast as he could _____ to catch the early bus.
| A．to hope。m | B．hope |
| C．hoping。m | D．hoped |