Question

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解答解説がないため教えて欲しいです🙇
（正誤問題です）

4. (A)When the host (B)told us that everything is ready, we went into the dining room
and (D)seated ourselves. oleh
5. Yumiko (A)does not finish her homework (c)in time to go (D)with us to the soccer
game yesterday afternoon.
6. The world population (A)has been getting larger, (B)quickly that it will (c)double in the
(D)near future.