They lost the match, ______ we know they did their best.
—________you _____your homework yet? —Yes, I ___it ten minutes ago.
Zhang Yu is a ________ girl from Sichuan.
—_________riding our bikes to the park?—Good idea.
— Betty, I’m not good at listening.— Why don’t you _______ in English every day?
Is it a good idea English by using it?