Where is Jack ?
is it?
books are there on the table?
Bill?
meet at the bus stop?
is your English book?
erasers does your sister have?
—Twice a month.
—It's about two kilometers.
—I like the after-school activities.
A:
B:
—In Stratford, England.
has Mr. Smith been in China?
—That's easy! It's you!