Question

______ they are most interested in is ______ they can produce more and better
cars.

A．That;how

B．What;how

C．What;what

D．That;that

Answer 1

B。

is前面是一個主語從句，要表達(dá)“他們最感興趣的（東西）”這一意思，只
能選what填入空白;is是表語從句，顯然只有選how才能表達(dá)“如何生產(chǎn)更多更好的汽車”。