Don’t _______ the pater. It can be used again.
| A．put up | B．throw away |
| C．look for | D．use up |
—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 |
It took him one hour________his homework．
| A．do | B．to do | C．doing | D．to doing |
The weather is too dry．Those trees need________．
| A．watering | B．to watering |
| C．to water | D．watered |