Some of my friends are interested in science, but none of them can tell ________.
| A．when UFOs appeared next time |
| B．that horses know the way or not |
| C．where was this kind of plant found |
| D．how elephants communicate |
______ takes him an hour to read the picture book.
| A．What | B．That | C．It | D．One |
----Hi, Sally! How about ______ chess on Sunday afternoon?
----Sounds like a good idea.
| A．play | B．to play |
| C．plays | D．playing |
— Are these your books?
— ___________________.
A. Yes, it is
B. No, they are
C. Yes, they are.
_____ are my ________.
A. These; pencil-boxes
B. those, pencil-boxes
C. This; pencil-boxes
—Hello, I am Linda.
— _________________.
A.Hi, my name is Alice.
B. What’s your name?
C. Who are you?.