With more forests being destroyed, huge quantities of good earth __________ each year, which __________ that our environment is suffering.
A．a(chǎn)re washing away, suggest
B．is being washed away, suggest
C．have been washed away, suggests
D．a(chǎn)re being washed away, suggests
D

試題分析：根據(jù)句意每年都有好的土地流失，故用現(xiàn)在進(jìn)行時(shí)態(tài)的被動式；第二空是定語從句，先行詞是整個(gè)句子故謂語動詞用單數(shù)。故選D。
點(diǎn)評：此題較易，首先是劃分句子成分，根據(jù)時(shí)間狀語確定時(shí)態(tài)；整個(gè)句子做先行詞時(shí)定語從句謂語用單數(shù)。
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