问题
选择题
A lot of trees ______ on the hill yesterday.
A．are planted
B．will be planted
C．have been planted
D．were planted
答案
D
考查被动语态的时态。选项中各句均为被动语态，因此不必考虑。句中的时间状语为yesterday，用一般
过去时态。故选D。
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A lot of trees ______ on the hill yesterday.
A．are planted
B．will be planted
C．have been planted
D．were planted
D
考查被动语态的时态。选项中各句均为被动语态，因此不必考虑。句中的时间状语为yesterday，用一般过去时态。故选D。