46. A study commissioned by the Department of Agricul¬ture showed that if calves exercise and associated with other calves, they will require less medication and gain weight quicker than do those raised in confinement.
(A) associated with other calves, they will require less medication and gain weight quicker than do
(B) associated with other calves, they require less medication and gain weight quicker than
(C) associate with other calves, they required less medication and will gain weight quicker than do
(D) associate with other calves, they have required less medication and will gain weight more quickly than do
(E) associate with other calves, they require less medication and gain weight more quickly than
答案(E)
想請問為什麼IF條件句後面的主要子句不用"will"呢
"if 現在式, 未來式." -->不是應該是這樣嗎?