A: Where is Simon?B: He ________ the USA.A: By the way, have you ever ________ abroad before? B: No, never.A. is in, been to B. has been to, goneC. went to, gone to D. has gone to, been
— The problem is a bit difficult . — ________ask your teacher for help?
—Did you know that the earth is the home of animals?
—Which country has________population ,China , India or America? — China.
I bought a new sweater last weekend. It________me 120 yuan.
—You must look around when you go________the street.