\_\_\_\_ the government not imposed a heavy comprehensive tax on land and housing, the marketing of real estate might have collapsed dramatically.
AHad正確答案
BIf
CWhether
DBecause
答案與詳解
為什麼答案是 A
第三類條件句（與過去事實相反）的條件子句原為 If 加主詞加 had 加過去分詞，省略 if 時需將 had 提前形成倒裝，即 Had 加主詞加 not 加過去分詞。
載入中…
