—People ________ wear helmets(头盔)when they ride e-bikes according to the traffic rules.
—Yes. Or they will be punished.
must
can
may
—Are those your friends? —Yes,_____________.
--Is that Mary Green ? --No , it’s Gina Millers . Her ____name is Gina .
Tom and Jim __________ in Class 3.
-Is this an orange?-Yes, ___________.
-How do you spell ring? -___________.