When "Due to" is used as "caused by", D makes grammatical sense but A sounds more logical to me because A says that an "Oversupply" in the market will force the company to shut down production for 2 days, while D says that plunging prices will force the company to shut down production. However, A has a "present perfect" problem. Clearly oversupply precedes manufacturer announcement, i don't think we can use 2 "has" here. I will go with A because it is marginally more logical -- by 会员 HerringtonD (2012/9/30 11:25:57)
the present perfect is legally used here
since you have a cause-and-effect relationship ,you don't need to use different tense to clarify the sequence;obviously,the cause happened first and then the effect
both happened in the past and relevant to the current topic,so perfect tense is needed here |