It's reported the medals for the 2020 Olympic Games in Tokyo____from 100% recycled material．（ ）
A．are makingB．have made
C．is madeD．will be made
Playing computer games too often ________ bad for us．（ ）
A．amB．isC．are
Stephen Hawking， a great scientist， died ________ the morning of March 14， 2018．（ ）
A．onB．inC．at
Mom， can you help me wash my clothes？
Sorry， dear． Help ________．（ ）
A．myselfB．ourselvesC．yourself
What do you think of ________ movie Amazing China？
It's wonderful．（ ）
A．aB．theC．/
Could you tell me _____？
I'm not sure， maybe tomorrow．（ ）
A．when does he leave for Changsha
B．when he is leaving for Changsha
C．when is he leaving for Changsha