It is accepted by everyone that knowledge is the most valuable _______ for human beings．（ ）
A．standardB．treasure
C．inventionD．instruction
Which word goes with the sound /sneik/？（ ）
A．snackB．smileC．stateD．snake
The movie____I have seen twice is The Wandering Earth．（ ）
A．whoB．whichC．whereD．when
We are supposed____some housework with our parents when we have free time．（ ）
A．to shareB．sharingC．sharedD．share
Tom watched the World Cup ____11：30 last night．（ ）
A．WhenB．unlessC．untilD．as soon as
Peter with his classmates____ for the bus when the earthquake happened．（ ）
A．is waitingB．was waiting
C．are waitingD．were waiting