--- Both the young and the old are getting crazy _______ WeChat(微信).
--- I agree. Nowadays we can see many people spend their free time ______ it.
| A．about; on | B．of; for |
| C．in; on | D．about; with |
—Your tea smells great！
—It’s from India．Would you like________？
| A．it |
| B．this |
| C．some |
| D．little |
The World Health Organization has given some advice on________to protect us from being infected(感染)with H7N9.
| A．how |
| B．what |
| C．where |
| D．when |
—What do you usually help your mother________？
—I often do the dishes．
| A．to doing |
| B．to do |
| C．doing |
| D．does |
--How clean the window is!
--Yes. It ________ just now.
| A．has been cleaned | B．was cleaned |
| C．is cleaned | D．will be cleaned |
--Where is Jim?
--He ________ Chengdu.
| A．went to | B．has been to |
| C．has gone to | D．go to |