—Where is Linda? —She is in her room. I can hear her_____songs. A.to sing B.singing C.sings.
China is very _______ the Great Wall and pandas.
I __________ to Canada twice. It’s so beautiful.
Your classroom is so dirty. Everyone should keep it ______.
– What else do you want? -- ________ else. I think I have got everything ready.
My grandma didn’t go to sleep ______ I got back home.