1.5kW·h=______J,9×106J=______kW·h,500W=______kW.
5.4×106;2.5;0.5
Don't ____ to others like that. You should ____ politely. [ ]
A. say; speak
B. speak; tell
C. say; talk
D. talk; speak
When he got home, he would find his house _______ and he didn’t know______ to do with the robot.
A.in a mess, how
B.in a mess, what
C.in mess, what
D.at a mess, how