I saw John in the park this morning.
It _____ be him. He has gone to HongKong.( )
A.can'tB.canC.mustn'tD.must
Mr.Smith was the only one of the writers invited to the meeting.( )
who was
who were
which was
I often books in the evening.( )
reads
read
reading
_____delicious the soup tastes!( )
How
What
What's
It was not long John returned with bags of food in his hands.( )
until
before
when
﹣What is this?
﹣It's pencil.( )
the
an
a