All passengers ____, please fasten your seat belts and remain seated ____the plane is landing．
| A．on board; until | B．abroad; since | C．on the board; before | D．aboard; when |
Do you know the difficulty he had _______the work?
| A．on finishing | B．to finish | C．finishing | D．finished |
_________ get such a book?
| A．Where do you think can I | B．Do you think where can I |
| C．Where do you think I can | D．Do you think where I can |
______large number of people are out of work now and______ number of people out of work is still growing up.
| A．The; a | B．A; a | C．The; the | D．A; the |
Your handwriting is all right, _______, you can do it better in my opinion.
| A．but | B．however | C．while | D．instead |
25. I don’t like the way _________ he speaks to his mother.
| A．which | B．in which | C．of | D．to |