23. Mr. Smiths was busy writing a story, only ______ once in a while to smoke a cigarette.
| A．to stop | B．to have stopped | C．being stopped | D．stopping |
It’s reported that energy drinks are not allowed ___ in Australia.
| A．to be making | B．to be made | C．to make | D．to have been made |
The experiment shows that proper amounts of exercise, if regularly, can improve our health.
| A．being carried out | B．carrying out | C．carried out | D．to carry out |
（年山东日照市高三校际联合检测）7．一What’s in the parcel?
—Some clothes______ to our son this afternoon．
| A．sent | B．being sent | C．to send | D．to be sent |
（年北京市西城区高三5月二模试题）34. I’ve made several travel plans for our vacation, but I’ll leave it to you ______ one.
| A．choosing | B．chosen | C．to choose | D．choose |