—Ruby, when did your father go out?
—I’m not sure, but he ______ go too far. His tea is still hot.
can’t
must
might
—Have you heard of the song Auld Lang Syne? —Oh, yes. It ________ very sweet.
I want to watch TV. Please ________.
—________ is it from your new home to our school? —About two kilometres.
I ________ an engineer when I grow up.
This kind of flower is ________ than that one.