It’s only six o’clock now; Little Tom should be up ,though, because he _____ for nine hours.
#102920
A
has been sleeping
B
had been sleeping
C
has slept
D
had slept
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I arrived late and missed the flight. I ____ the traffic to be so heavy.
#102900
A
hadn’t expected
B
haven’t expected
C
wouldn’t expect
D
was expected
--- How long ____ in Beijing? --- For just the weekend. I’ll be back for work next Monday morning.
#101267
A
have you stayed
B
are you staying
C
did you stay
D
do you stay
They made up their mind that they______ a new house once Larry changed jobs. 
#99080
A
bought
B
would buy
C
have bought
D
had bought