— What color _________ Mary’s shoes?— _________ black.A. are; They’re B. is; They’re C. is; It is
—Let’s make tomato and beef noodles. — .
--Can you help me to _____ my dog when I leave for Hong Kong? -- Sure.
She said she had some trouble ___________ her homework.
Our country _______ a lot in the last fifty years.
My mother_______ if she ________her work this week.