30．--- Do the Smiths live next door to you?
--- No, but they____.
| A．used to | B．used to do | C．used to doing | D．used to be |
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 |
Until now, we have raised 50,000 pounds for the poor children, _______ is quite unexpected．
| A．that | B．which | C．who | D．it |