can he finish the task on time yes,because ___ of his workmates supports him
问题描述：
can he finish the task on time yes,because ___ of his workmates supports him
A every B all Cboth D each
答
D.each ,因为 all,both 是复数,动词用support ,主语是第三人称单数后面动词才用 supports,,没有every of 这种说法,所以each正确.