He's got himself into a dangerous situation __________ he is likely to lose control over the plane.
| A．where | B．which |
| C．while | D．why |
I had just taken a bite of my hot dog ________ I heard a familiar voice yelling at me from across the crowded school yard.
| A．before | B．while | C．since | D．when |
Mr. Xue enjoyed ________ by working in Yangzhou-Taizhou Airport because he always hates ________ while staying alone at home all day long.
| A．itself; that | B．himself; it | C．it; it | D．him; that |
—— Did you have a good time at ________ party last night?
—— Yes. I’ve never been to ______ more exciting one.
| A．the; the | B．the; a | C．不填；the | D．a; a |
When we think of trees at Christmas, there is ________ that immediately springs to mind－the evergreen tree beautifully decorated.
| A．the one | B．that | C．it | D．one |
—Has your brother found an apartment yet?
—No, he's still living in a room downtown, but I ________ him look.
| A．help | B．have helped | C．am helping | D．helped |