It is the first time that I _____ abroad.
A. have been B. was B. will have been D. am
With the plane ________，some passengers on board feel sick and want to throw up.
| A．taken off | B．taking off |
| C．to take off | D．would take off |
He always dreams of ________ a chance for him to bring into full play his potential.
| A．there being | B．there to be |
| C．there is | D．being |
．________ bricks，workers press clay into blocks and bake them to the requisite hardness in a kiln.
| A．Made | B．To make |
| C．Being made | D．To be made |
New ideas sometimes have to wait for years before ________.
| A．being fully accepted | B．fully accepted |
| C．fully accepting | D．fully being accepting |
________ the past，our life is much better.
| A．Comparing with | B．Be compared |
| C．To compare with | D．Compared with |