It has become a time for (have)fun.
举一反三
- We almost ____ no time for fun. A: has B: have C: having D: are have
- We almost no time for fun. A: have B: has C: having
- The letter must have sat in the drawer for such a long time that ithas become yellow. A: yellowed B: has yellowed C: yellow D: is yellow
- He _______ a league member for three years A: is B: has been C: has become D: have become
- At the same time, high blood pressure has become an problem.