We shouldn’t read ________ the sun. It’s bad ______ our eyes.
He sometimes ________ a picture, but now he __________.
Sandy likes playing ___ baske tball, but she doesn’t like playing ___ piano.
-He looks very worried. -I wonder ______________________.
-Two of my classmates cheated in the English exam. -______________________ They should learn a lesson from it.
-You still got _________ in the face of big challenges. How brave you are! -Every time I want to stop, my parents and teachers always encourage me _______ on.