_____ succeed in doing anything.
| A．Only by working hard we can | B．By only working hard we can |
| C．Only we can by working hard | D．Only by working hard can we |
Althoughmy opinion,the old professor didn't come up with his own.
| A． | against | B． | on | C． | for | D． | in |
-You are always full of.Can you tell me the secret?
-Taking plenty of exercise every day.
| A． | power | B． | strength | C． | force | D． | energy |
Danny _______ hard for long to realize his dream and now he is popular.
| A．works | B．is working | C．has worked | D．worked |
You will be successful in the interview _______ you have confidence.
| A．before | B．once | C．until | D．though |
-Excuse me,do you have the time?
-.
| A． | Yes,I do | B． | Of course,I have |
| C． | A quarter to ten | D． | No problem |