When you learn a foreign language, ________you must forget your own one.
| A．above all | B．after all |
| C．in all | D．at all |
Susan wanted to be independent of her parents. She tried _____ alone, but she didn’t like it and moved back home.
| A．living | B．to live | C．to be living | D．having lived |
the Internet is of great help. I don't think it's a good idea to spend too much time on it.
| A． | If | B． | While | C． | Because | D． | As |
I called Hnnah many times yesterday evening, but I couldn’t get through. Her brother _____ on the phone all the time!
| A．was talking | B．has been talking | C．has talked | D．talked |
The growing speed of a plant is influenced by a number of factors,are beyond our control.
| A． | most of them | B． | most of which | C． | most of what | D． | most of that |
_____ the project as planned, we’ll have to work two more hours a day.
| A．Completing | B．Complete | C．Completed | D．To complete |