35．Boris，________ in London for decades，knows every place well enough to be a guide．

A．lived　　　　 　　　　 B．living　　　　 　　　 C．having lived　　 　　 D．to have lived

34．I don't understand ________ that prevents so many Americans from being as happy as one might expect．

A．why it does　　 　　　 B．what it does　　 　　 C．what it is　　　 　　　 D．why it is

33．You may call on me from one to five o'clock，during ________ I am always at home．

A．the time　　　 　　　 B．what time　　 　　　 C．that time　　　　 　 D．which time

32．Fox is advised to give the task to ________ he believed has a strong sense of responsibility．

A．whom　　　　 　　 B．whomever　　 　　　 C．whoever　　　 　　　 D．anyone

31．Janice couldn't have passed the interview，otherwise she ________ to tell me．

A．could call　　　 　　　　　　　　　　　　　　　　　　　　 B．would call

C．would have called　　　　　　　　　　　　　　　　　　　 D．should have called

30．I know a little bit about German as I ________ Germany for a few weeks．

A．had visited　　 　　　　　　　　　　　　　　　　　　　　 B．visited

C．was visiting　 　　　　　　　　　　　　　　　　　　　　　　 D．had been visiting

29．The weather here is generally mild，but it ________ be very rough in summer．

A．can　　　　　 　　 B．should　　　　 　　　 C．will　　　　　 　　　 D．may

28．Anger is good for you，________ you control it properly，according to new psychological research．

A．before　　　　 　　　 B．when　　　　 　　　 C．as long as　　　 　　 D．in case

27．Careless driving is a great killer，so ________ is drinking allowed before driving．

A．at no time　　　 　　 B．in no time　　　 　 C．at a time　　　　 　 D．at all times