It’s so cold. You’d better __________ your coat when you go out.
—Did you find the small village yesterday? —Yes,without any difficulty,for it has ________ changed over years.
Mrs Smith lives in such a big house without a child around.So she feels very ___.
This is 3-D printer. And this is an artificial (人工的) ear. Can you believe that scientists printed this artificial ear by this 3-D printer?
Nearly _______of the earth___covered by sea.
--Don’t worry. My mother will look after your baby __________. --Thanks a lot. A. careful enough B. enough careful C. carefully enough