The old man, ________ abroad for twenty years, is on the way back to his motherland.
| A．to work | B．having worked |
| C．to have worked | D．working |
—How can I use this washing machine?
—Well, just refer to the.
| A．explanations | B．expressions | C．introductions | D．directions |
He spent too much time talking onphone while we were all busy atwork..
| A．the; / | B．a; / | C．/ ; / | D．the; the |
19. I don’t know why he blamed the accident _____ me.
| A．at | B．to | C．for | D．On |
18. The dying man is _____ the help of the doctor.
| A．outside | B．without | C．out of | D．Beyond |
17. Hunan lies _____ such provinces as Hubei, Jiangxi, Guangdong, Guizhou and Chongqin.
| A．among | B．above | C．beside | D．Between |