35．The man was observed into the manager’s office and help himself to everything valuable．
A．slip B．slipping C．to slip D．slipped
34．How disappointed the students were when that their English teacher would not came to their English evening!
A．informing B．informed C．being informed D．to be informed
33．-Aren’t you fond of the pop singer’s songs?
-Not at all．He is screaming singing．
A．rather than B．more than C．other than D．or rather
32．Hosting the 29th Olympic Games is a good opportunity for China to show to the world
We have achieved in recent years．
A．which B．that C．where D．what
31．My father is always busy and he seldom comes back home before 7:30 pm， many people may have had supper．
A．by which B．since which C．whose time D．on which
30．Air pollution is a big problem in large cities， in developing countries．
A．exactly B．absolutely C．extremely D．especially