题目内容：

同义句转换.1 When he was seven years old,he began to go to school. 改为He began to go to school...
同义句转换.1 When he was seven years old,he began to go to school. 改为He began to go to school _ _ _ _ _ 2 She was so weak that she couldn't take care of her baby 改为She was _ _ _ _ take care of her baby

优质解答

1.at the age of seven 或 when he was aged seven
2.如果是四空,应该是：not strong enough to 或 not healthy enough to 或 much too weak to
如果是三空,才是：too weak to