Many cities issued a warning of air pollution for PM-2.5 readings, which became Concern of all the people
It makes little difference to me _____ we go or stay.
When asked how he liked his job, he said he was happy _____ he was.
--- Beg your pardon, but I didn’t follow you. --- Oh, I ______ myself.
It’s really ____ fun to walk alone with _______ full moon hanging in the sky. A.a; the B.a; 不填 C the; a D.不填; a
The knee is the joint ______ the thigh bone meets the large bone of the lower leg.