—What do you think of water? —It is very ____ in our daily life. We can’t live without it. A. dangerous B. important C. large
—Is that your sister? —Yes, is. A、she B、it C、that
—Is the ruler on the sofa? —. A、Yes, I am B、No, it isn’t C、No, they arem’t
—Where ismother? —is in the room. A、his, She B、your, He C、he, She
A notebook and a penon the chair. A、have B、is C、are
your frienda tennis racket? A、Do, have B、Does, have C、Do, has