The number of people who ____English as a foreign language __more than 750 million.
A．learns; isB．learn; areC．learns; areD．learn; is
D

試題分析：句意：學(xué)英語作為一門外語的人的數(shù)量現(xiàn)在已經(jīng)超過7.5億人。Who引導(dǎo)的是定語從句，它在從句中作主語，先行詞是people，當(dāng)who在從句中作主語時，謂語動詞的單復(fù)數(shù)根據(jù)先行詞來確定，故排除AC；第二空是整個句子的謂語動詞，句子的主語是number，故謂語動詞用單數(shù)，故選D。
點(diǎn)評：本題難度適中。主謂一致是高中階段的重要的一項(xiàng)語法項(xiàng)目，它們的各種情況比較多，需要考生牢記它們的用法，這里考生容易誤選B。
即學(xué)即練：Butter and bread _____ their daily food, but the bread and the butter_____ up now.
A. is; is eaten  B. are; have been eaten  C. are; are eaten  D. is; have been eaten
解析：D。句意:前一空的butter and bread表示同一概念，謂語動詞用單數(shù)形式;后一空是指兩種不同食物，故選D項(xiàng)。
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