﹣Look! It ________ be David in the classroom.
﹣It ________ be him. Because I saw him in the library a moment ago.( )
may; mustn't
must; can't
can; can't
can; mustn't
A letter to you by the boss in one or two weeks.( )
is sent
will send
sends
will be sent
Write it down you forget it.( )
after
until
before
as soon as
﹣﹣﹣ you look tired. What's wrong?
﹣﹣﹣ I up late last night.( )
stay
stayed
will stay
am staying
Don't worry. I'll do what I to help you.( )
can
may
must
need
﹣﹣﹣How are you feeling now?
﹣﹣﹣Much .( )
good
well
best
better