Butterflies________a sweet liquid produced by flowers，which bees and other insects collect. (2013·湖北，25)
| A．carry on | B．feed on |
| C．put on | D．focus on |
Grandma pointed to the hospital and said, “That’s ______ I was born．”
| A．when | B．how | C．why | D．where |
Is this your necklace, Mary? I ______ it when I was cleaning the bathroom this morning．
| A．came across | B．dealt with |
| C．looked after | D．went for |
_______ the forest park is far away, a lot of tourists visit it every year．
| A．As | B．When | C．Even though | D．In case |
Last night, there were millions of people _______ the opening ceremony live on TV．
| A．watch | B．to watch |
| C．watched | D．watching |
It’s not doing the things we like, but liking the things we have to domakes life happy．
| A．that | B．which | C．what | D．who |