当你在野外发生意外,急需援救时,你应该打出什么信号?A.SOS B. UFO C.WTO
Can you come to my house ______the science report?
The famous actor planned ______her vacation in the countryside.
He stood _____ and waited for the bus.
I_____ go home ______the concert was over.
Thank you for ______me to join you.