He tried his best to solve the problem,_____difficult it was. A however B. no matter C. whatever D. although
It has come to my _____ that some of you have been missing classes.
A month’s _____ is required from whichever party wishes to end the agreement.
In the of proof , the police could not take action against the man .
The house was sold for $60,000, which was far more than its real ____.
Every year, ____ graduates take pan in TOEFL for further education abroad.