2019年mpacc考试英语真题——连词1046

{01}___ it was already dark, they went on working in the fields.

A.If

B.Whether

C.But

D.Though

解析：略
本题选D。
{02}The trouble is ____ we can not find such an expert.

A.why

B.that

C.where

D./

解析：略
本题选B。
{03}Beijing has ________ many buses that there is often a traffic jam in rush hours,

A.so

B.very

C.too

D.much

解析：略
本题选A。