—This physics problem is too difficult. Can you show me _____, Wang Li?—Sure.A. what to work it outB. what to work out itC. how to work it out
Here ____ two photos ______ my family.
Look! _____ are his ______.
They don’t play sports, they only______ them ________ TV
I often play ping-pong_______ my classmates after class.
---Let’s play computer games.--- No. That sounds______.