He works in a factory now, but he__ on a farm for 20 years.
| A．worked | B．has worked | C．had worked | D．had been working |
I asked the tailor to make a small _____ to my trousers because they were too long.
| A．change | B．variation | C．revision | D．alteration |
My parents have____ us $15,000 for the house. Shall we take it?
| A．provided | B．supplied | C．shown | D．offered |
Father told me to_____the milk unntil it boiled and then turn off the gas.
A observe B. watchC.notice D. see
She is so______ to his English teaching that I admire for his______.
| A．devote; devote | B．devoting; devotion | C．devoted; devotion | D．devoted; devote |
We can't _____ one to change the habits of a lifetime in a short time.
| A．hope | B．wait | C．expect | D．imagine |