You may just give me a call or drop in, will do.
| A．Either | B．All | C．Each | D．Neither |
It is my own ____________ that I failed in yesterday’s interview because I was late.
| A．fault | B．behavior | C．duty | D．job |
____________ his returning, he will clean the room and wash clothes.
| A．As soon as | B．Upon |
| C．For the moment | D．The moment |
The old man has two sons, ____________ are working in the supermarket.
| A．both of whom | B．each of them |
| C．both of them | D．all of whom |
All her time ____________ her students, so she has no time for housework.
| A．devoted to teach | B．is devoted to teaching |
| C．is devoting to teaching | D．devoted to teaching |
With all teeth ____________, my grandfather has few choices on his diet.
| A．going out | B．staying out |
| C．working out | D．falling out |