______it is to jump into the river to swim in summer!
| A．What a fun | B．What fun | C．How fun | D．How funny |
Here _______my books.
| A．are | B．is | C．am | D．be |
---- Where is your book?
----
| A． Sorry, I don’t know. | B．Do, have |
| C．Its here. | D．Does, have |
Thanks _____ your help(帮助) .
| A．you | B．at | C．for | D．of |
--Are these your cousins?
--_______ .
| A．Yes，they aren’t | B．No, these aren’t |
| C．No, they aren’t | D．Yes，these are |
This ____my sister and those ________ my parents．
| A．is；is | B．is；are |
| C．are；is | D．are；are |