I ________ use a clock to wake me up because at six o'clock each morning the train comes by my house.(2012·新课标全国)
You’d better choose someone________ you think ________ kind and friendly to help you.
They are teachers and don’t realize ________ to start and run a company.
I ____ him by surprise and he had no time to think of an excuse.
I’m sorry to ______ you, but can you tell me how to get to the library?
Remember that there is still one point ______we must make clear at the conference tomorrow.