--- When_______ Mary’s birthday?--- It’s_______ September.A. am; on B. is; in C. is; on
—— I feel tired and sleepy. ——Why not _______?
The picture shows us _______ in Nanjing in the past.
―What colours can give you a happy and satisfied feeling? ―________.
.She worries ________, so she often feels much ________.
He said he ________ the photo on his home page to ________ it to others.