I____ my homework at nine o'clock last Sunday morning.
It is not a problem ______ we can win the battle;it's just a matter of time.( )
whether
why
when
where
Building such a bridge over the bay was ______,but the local government made it within two years.( )
a wet blanket
a piece of cake
a dark horse
a hard nut to crack
They decide to have more workers for the project ______ it won't be delayed.( )
even if
as if
now that
so that
If you look at all sides of the situation,you'll find probably a solution that _______ everyone.( )
suit
suited
suits
has suited
Many lessons are now available online,from ______ students can choose for free.( )
whose
which
whom