以下哪项关于脑皮质梗死的描述是错误的（）

A.脑梗死的基本病理改变是水分比例增加

B.其基本CT表现是低密度（与正常脑组织相比）

C.发病2～15天水肿最重

D.可有占位效应

E."模糊效应"期常常出现在第1周以内

根据句意，用所给单词的适当形式填空。（5分）

1. Tom is looking forward to _________ (see) the park.

2. Be careful when you go __________(cross) the street.

3. Which bus ________ I _______ (take) to the post office?

4. Tom fell off the bike and _________ (hurt) his legs.

5. He wants to know if the ________(follow) answer is right.