Has your daughter come back from Australia?
Yes. She ______ there for three years( )
has stayed
stays
stayed
had stayed
—I don’t know when ______ tomorrow.—I will call you as soon as he ______.
——Excuse me. Is it my turn now? ——Not yet. Please wait on the chair ______your name is called.
I was surfing the Internet my brother was doing his homework.
She has studied in this school she was seven years old.
While Helen _____ along the river after supper, she ____ a wallet lying on the roadside. A. was walking; was finding B. walked; found B. walked; was finding D. was walking; found