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?
_______ do the football cards ____ ?
The bear is lovely. I want __________it _______my friends.
Is there a discount _____ last month’s coats?
Are you ________ homework ________ someone else?
I ______ standing at the table with all my _______.