29. He was busy preparing a speech , only _______ once in a while to rise from the table for a tea .
| A．stopping | B．to stop | C．to have stopped | D．having stopped |
All the preparations for the project ______, and we’re ready to start.
| A．completed | B．have been completed |
| C．had been completed | D．been completed |
Such _______ the case, I couldn’t help but______ him.
| A．being, support | B．was, support |
| C．has been, supporting | D．is, to support |
All the preparations for the project ______, we’re ready to start.
| A．completed | B．have been completed |
| C．had been completed | D．been completed |
All her time _______ experiments, she has no time for films.
| A．devoted to do | B．devoted to doing |
| C．devoting to doing | D．is devoted to doing |
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 |