[考題] 想請問一題填空

[bicat1011 (bi)]

考題：一般


題目：That is why consumption of rice has never slackened in Taiwan,
though its price has gone up considerably ____ Taiwan joined the World
Trade Organization.

選項:(A)before(B)after(C)since(D)for
答案是(B)after


提問：不懂的地方是(C)since文法不是也是對的嗎?為什麼不能選C呢?

希望有人可以幫忙解決~~謝謝:)

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→ jacqueswu:since Taiwan have joined?
→ bicat1011:請問是說用since的話後面得在加上一個joined才對嗎?因
→ bicat1011:為我一直以為since後面接過去式的句子是正確的@@?
→ bicat1011:抱歉打錯><是說選since的話後面得在加上一個have才對嗎?
→ memorabilia:我覺得C才是答案
推 memorabilia:會不會有可能是had gone up... after Taiwan joined?
→ tengharold:也感覺C才正確；一般after後面都接past perfect tense