The little boy is dirty from head to foot because he ______ in the mud all morning.
#103627
A
has played
B
has been playing
C
is playing
D
was playing
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Yunnan ______from serious drought since 2009, so it’s our duty to save water every day.
#100724
A
suffered
B
has been suffering
C
has been suffered
D
have been suffering
It ______ be better if I could earn enough money to buy a private car.
#103838
A
will
B
must
C
shall
D
would
(2014·北京四中3月模考)It is well known that knowledge is________treasure house，but practice is________key to it.
#99126
A
a；the
B
the；the
C
a；/
D
/；the
Mr. Chapman retired at 70 after he nearly 40 years with the Gas Company．
#102772
A
had spent
B
has spent
C
spends
D
would spend