—How many times ________ Li Yan ________ to the Great Wall?—Twice.

--______ you _____ the movie Kung Fu Panda II?--Not yet. I’ll see it this Sunday.

My mother _______ me a computer as a birthday present next year. 

Lisa wrote a letter in the morning, but Bob _______.

--- Where is your mother?--- She has ______ to Sichuan on business. She has ______ there four times recently.