21. In the face of widespread concern about environmental waste, compact disc manufacturers are attempting to find a replacement for the disposable plastic box in which they package their product.
(A) the disposable plastic box in which they
(B) the disposable plastic box where they
(C) a disposable plastic box in which to
(D) disposable plastic boxes inside which they
(E) the disposable plastic boxes in which to
The key is A.
How about B and D?
THanks
21. In the face of widespread concern about environmental waste, compact disc manufacturers are attempting to find a replacement for the disposable plastic box in which they package their product.
(A) the disposable plastic box in which they
(B) the disposable plastic box where they
where 无指代.
(C) a disposable plastic box in which to
(D) disposable plastic boxes inside which they
they 指带有歧义, inside 没有in 准确.
(E) the disposable plastic boxes in which to
The key is A.
How about B and D?
THanks
欢迎光临 ChaseDream (https://forum.chasedream.com/) | Powered by Discuz! X3.3 |