—Is everyone here?—Not yet. Look, there _______ the rest of our guests!
______ birds use their feathers for flight, some of their feathers are for other purposes.
Once
If
Although
Because
-______ that company to see how they think of our product yesterday?
-Yes. They are happy with it.
Did you call
Have you called
Will you call
Were you calling
Every year, ______ makes the most beautiful kite will win a prize in the Kite Festival.
whatever
whoever
whomever
whichever
-Peter, please send us postcards ______ we'll know where you have visited.
-No problem.
but
or
for
so
Samuel, the tallest boy in our class, ______ easily reach the books on the top shelf.
must
should
can
need