2019年mpacc考试英语真题——连词591

{01}Questions and exercises  are given by the computer, which decides ______ to move the students ahead, review an easier level, ____ give more work on the same level.

A.either, or

B.both, and .

C.whether, or

D.not only, but also

解析：Whether---or·---表选择。问题的给出是为了决定是提高水平还是做同一水平的题。故选C。
本题选C。
{02}_By success I don’t mean_______usually thought of when that word is used.

A.what is

B.what has

C.that is

D.that has

解析：考查连词。what 引导宾语从句，在从句中作主语，is thought of 的意思是“被认为”。
本题选A。
{03We must take measures to protect endangered wildlife _______ it is too late.

A.now that

B.as long as

C.unless

D.before

解析：本题易误选C。后空意思“趁不太晚的时候”，before符合句意。
本题选D。