Look at the lady in a white T﹣shirt,is she Ms.Yang?
It____be her,she has gone to the library.( )
mustn't
may
can't
should
Jack may fall behind the other students in his class when he _________ back from England next week.
Lily ________ other colours ________ blue, green and yellow.
He will send me a message as soon as he _________ in London.
Nobody ______her because she has a new look.
I don’t know if Mr. Smith ____. If he ___, I will tell you.