The number of speech pathologists(who help people who have problems speaking) ...

Question

The number of speech pathologists(who help people who have problems speaking) double by the year 2012. A．is expected to B．are expected to C．expects to D．expect to

Answer 1

A
试题分析：考查词组和主谓一致：句意：据估计语言病理学家的数量到2012年将会翻翻。Be
expected
to
do据估计…，排除CD，另外主语是the
number
of…的数量，谓语用单数，选A。