---Why do you come back so late?
---Because there were too many people in the supermarket, and I had to _____to pay for the things.
| A．wait in line | B．cut in line | C．stand up | D．speak loudly |
—What would you do if you had one million dollars？
—I would________to the medical research．
| A．give them away |
| B．give away them |
| C．give it away |
| D．give away it |
—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 |