Many British people have noticed that butterflies _______ from its natural habitats during the past several years.
A．a(chǎn)re disappearingB．have been disappeared
C．have been disappearingD．will have disappeared
C
考查動(dòng)詞時(shí)態(tài)與語態(tài)。根據(jù)時(shí)間狀語during the past several years在過去的若干年，可知一直到現(xiàn)在，故用現(xiàn)在完成進(jìn)行時(shí)，選C。
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