. It is necessary for us to learn _____ second language ____ our mother tongue.
. ____ time and labor, you should join hands ____ him in the business.
. ____ the answer, Tom, who asked the questions, still stood with his hand ____.
. Nobody can bear __________ at in public places.
. --- Do you think we can get there on time? --- Yes, ____________ the car doesn’t break down.
. --- It is said that you have given up your job as a secretary. Why? --- The salary is OK, but I have got ___________ nothing in the office all the time.