Do you think necessary to do a bird count ?Yes , we must count them at least once a year
I was about to park my car when a policeman stopped me. He pointed to a sign “________”.
Jim is a nice boy ________ likes helping others.
----Can you tell me _________ ? ----They cost 200 yuan.
---- ________ will your father come back from Beijing? ---- In two days.
---- ______plastic bags we use, _____ it will be to the environment. ---- I agree ________ you.