﹣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
Why ______ we close that chemical factory?
Because it has caused lots of pollution. We need better environment.( )
must
can
may
It's reported that Fuxing high﹣speed train can go as ______ as 350km an hour.
Wow, how amazing!( )
fastest
faster
fast
Did you watch the basketball match on TV last night?
I wanted to, but my father______ his favorite TV program.( )
watched
was watching
watches
The sunglasses on your desk are nice. Are they ______?
Yes, I got them from my parents as a birthday present.( )
yours
your
yourself
Do you mind my smoking here?
﹣______. Look at the sign. It says, "No smoking."( )
Never mind
Of course not
You'd better not