The factory used 65 percent of the raw materials,the rest of which saved for other purposes.
| A．is | B．are | C．was | D．were |
If the teaching doesn’t _______ to your students, your students will gradually lose interest in it.
| A．tend | B．get | C．appeal | D．attend |
My interest in English ______ September 2009 when I met our present English teacher.
| A．dates from | B．dated from | C．dates back | D．dating back to |
______ you I owe a thousand apologies ______ having doubted your ability.
| A．For; to | B．For; for | C．To; to | D．To; for |
A good solution to the problem _________at the meeting.
| A．came about | B．came along | C．came up | D．came to |
– I’m sorry I stepped on your toe; it was an accident.
– It wasn’t! You did it ______.
| A．by accident | B．at present |
| C．on purpose | D．at dusk |