To get into the habit of smoking means ____ one's own life short.
| A．to make | B．makes | C．making | D．make |
. Once your business becomes international, _____ constantly will be part of your life.
| A．you fly | B．your flight | C．flight | D．flying |
. Remind me _______ the medicine tomorrow.
| A．of taking | B．Taking | C．to take | D．take |
. The murderer was brought in, with his hands ______ behind his back.
| A．to be tied | B．being tied | C．tied | D．having tied |
. The purpose of new technologies is to make life easier, ______ it more difficult.
| A．not make | B．not to make | C．not making | D．do not make |
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 |