—What is Lucy doing now?
—She _____ a book.
| A．read | B．reads | C．reading | D．is reading |
－Are these library books?
－Yes, ______.
| A．it is | B．they are |
| C．this is | D．these are |
－Who’s that?
－________
| A．He is my brother. | B．That’s my brother. |
| C．It’s my sister. | D．She’s my sister. |
The boy _______ a blue jacket can sing songs _______ English.
| A．with, in | B．in, with | C．in, in | D．with, with |
书写时占三格的字母是______.
| A．e | B．g | C．b | D．f |
“中华人民共和国”的缩略词是______.
| A．UN | B．PRC | C．CCTV | D．NBA |