983.One of the most important questions they had to consider was ____ of public health.
A.what
B.this
C.that
D.which
984.At first, he hated the new job，but decided to give himself a few months to see ___ it got any better.
A.when
B.how
C.why
D.if
983.答案是C;that作代词往往用于特指，相当于 the+名词，通常只代替事情而不代替人。此处指代the question。）
984.答案是D;(从句中不缺少时间、方式、原因，故排除A、B、C项，而if在此表示是否，符合句意。）
