_______ boys in my class can ski but _______ of them can do as well as Jim does.
—Where is the library, Jane?—_______________
—Do you enjoy _____ at the party?—Yes, we do.
—Who went to the park with you yesterday?—Li Lei _____ .
— _____ was the tea party last week?—It was very nice.
Would you like _____ shopping with us tomorrow?