-Sorry, she is not in. She __________ Shanghai.
一 He _____ Switzerland. He _____ there for several months.
—Yes, but only once.
—When __________ there?
—Two year ago.
—Not only Mr. and Mrs. Green but also their daughter abroad twice.
—He together with his students __________Zhuyuwan Park.
—No, it can't be her. She ______ to Beijing.
—So it is. I there twice.
—Yes, I ___________ there several times.
—Yes, I there three times. It's fantastic.
—No, never.
—They haven't been back.
—He abroad for 2 months.
The old man for 10 years.
—No, it can't be him. He________ to Nanjing.
—Sorry, she _____ to the library. But she______ in an hour.
— Sorry, he _________ Beijing. He _________ in three days.
—Yes, I have. It's fantastic.