. I would appreciate ______if you could lend me a hand.
| A．you | B．this | C．it | D．that |
Every time I returned after an , I felt stupid because I was behind the others.
| A．ambition | B．abandon | C．absence | D．appoint |
However, the eruption itself is really exciting and I shall never forget my first sight of one.
| A．to watch | B．to be watched | C．watched | D．watching |
I go back to sleep when suddenly my bedroom became as bright as day.
| A．was about to | B．was just to | C．would | D．was to |
It is human activity has caused this global warming.
| A．which | B．that | C．what | D．why |
Sometimes some children in my primary school would laugh, when I got out of _______breath after running _____ short way or had to stop and rest halfway up the stairs.
| A．the a | B．不填 a | C．不填 the | D．a the |