It was April 29,2011 _______ Prince William and Kate Middleton walked into the palace hall of the wedding ceremony.
| A．that | B．when | C．since | D．before |
The group’s research has done much toour knowledge of the HIV virus．
| A．advance | B．pull | C．rush | D．adopt |
—“ Neal, listen,” she said, looking straight at him．”I ask you not to get ____in this kind of matter．
—It’s none of your business”．
| A．associated | B．involved | C．attached | D．connected |
Rolls-Royces is rankedfourth in the list of best cars．The Browns already have two and now they are buyingthird．
| A．the ; the | B．不填; a | C．the ; a | D．不填; the |
—Do you let your kids travel by themselves at night?
—________! It couldn’t be more dangerous.
| A．Of course | B．Not at all | C．Absolutely not | D．I’m not sure. |
－What do you think of the party last night?
－Wonderful! It’s years I enjoyed myself so much.
| A．after | B．when | C．before | D．since |