She is always ready to help others and asking for nothing____.
| A．in return | B．in case | C．in addition | D．in turn |
_______ about the man wearing sunglasses during night that he was determined to follow him．
| A．So curious the detective was | B．So curious was the detective |
| C．How curious was the detective | D．How curious the detective was |
I really don’t know how to thank you , but for your help, I ______ my lost necklace．
| A．couldn’t have found | B．mustn’t have found |
| C．couldn’t find | D．wouldn’t find |
I don’t think his daughter is able to mend a computer, ________?
| A．does he | B．isn’t she | C．doesn’t he | D．is she |
__________ is often the case with her, my mother talked about my study for at least half an hour nonstop before she drove me to school yesterday．
| A．As | B．Which | C．What | D．That |
The girl had hardly rung the bell __________ the door was opened suddenly, and a birthday party was waiting for her．
| A．until | B．since | C．when | D．after |