--How many times has Chang’eⅠ ________ the Moon?--Only once.It went there last year.A.go to B.gone to C.been to
Xu Qian is a funny girl. She loves to __________ jokes.
—How do you study English well? —__________ working hard.
—It looks like rain, __________? —Yes, it does. And I forgot my umbrella.
Sam came to Baihai in 2002. He __________ here for nine years.
You’ll be late __________ you don’t get up now.