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【单选题】
Her family _____ much larger than mine four years ago. Her family _____ dancing and singing when I came in last night.A.
were; was
B.
was; were
C.
was; was
D.
were; were
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举一反三
【单选题】Every year _______ of trees are planted on the hills to protect the environment. [ ]
A.
a thousand
B.
thousands
C.
thousand
【单选题】Now that the forest was destroyed by a big fire, a large ________of trees ______ to be planted on the mountain．
A.
number; has
B.
quantity; has
C.
amount; have
D.
sum; have
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