—Be quiet, Mr Smith is coming.—Don’t worry. It ___ be him. Mr Smith is much taller.A. mustn’t B. must C. can’t
I _______ Linda. This _____ my pen.
The jacket is black _________ blue.
——What color is the pen? ——___________.
——What’s this? ——___________.
——__________ ——P-E-N.