問題詳情：
根據第一句完成第二句。
often hear her sing an English song in her room.
She is often __________ __________ sing an English song in her room.
zoo is full of children on Sundays.
The zoo is __________ __________ children on Sundays.
is very weak,and he can't carry the heavy box.
He isn't __________ __________ to carry the heavy box.
pocket computer is more expensive than that one.
That pocket computer is __________ expensive __________ this one.
angry man left before he said good-bye to us.
The angry man left __________ __________ good-bye to us.
【回答】
d to ed with
ng enough than
out saying
知識點：句型轉換
題型：未分類
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