---______do the students exercise a week ?
---Once or twice.
| A．How often | B．How long | C．How | D．How many times |
A set of keys _____on the desk.
My pen and my pencil_____ in my pencil box.
A. is;is B. is; am C. is; are
How ______ your mother, Linda?
A. is B. am C. are
—What’s her family name? —It’s _______.
A. Mary Brown B. Mary C. Brown
This is orange. It’s red book.
A. /; a B. /; an C. an; a
下列各组字母中含有相同读音的一组是 ____。
A. A, S B. L, Y C. M, X