2019年mpacc考试英语真题——介词和介词短语2123

{01}____________, they have been struggling against the snowstorm for ten hours.

A.Up to now

B.By the time

C.From then on

D.In the future

解析：略
本题选A。
{02}As time went by , the theory he had stuck ______ correct .

A.to prove

B.to proving

C.to proved

D.to be proved

解析：考查句子结构，he had stuck是从句修饰the theory，从句中缺少to，这句话的谓语是prove，表示“证明是”，相当于连系动词，后面接名词或形容词，不用被动，句意：随着时间的推移，他坚持的理论证明是对的。选C。
本题选C。