一患者缺失，面Ⅱ度龋坏，近中舌向倾斜、不松动，余留牙牙石Ⅱ度，左侧下颌隆凸明显、倒凹大，上颌牙完全正常。

患者需要做的修复前准备为（）。

A．拔除

B．拔除，牙周洁治剩余牙

C．充填面龋坏，牙周洁治剩余牙

D．拔除，牙周洁治剩余牙，手术去除左侧下颌隆凸

E．充填面龋坏，牙周洁治余留牙，手术去除左侧下颌隆凸

根据句意，用括号中所给单词的正确形式填空，每空一词。

1. So far, I have to make a ______ (decide) about where to go for the coming summer holidays.

2. This year it has rained so ______ (heavy) in South China that lots of problems are caused.

3. When we walked past the playground yesterday, we found him ______ (lie) on the grass,

    enjoying the sunset.

4. Jack is busy preparing for a party to celebrate his sister's ______ (twelve) birthday.

    He wants to give her a big surprise.

5. —On April 14th, an earthquake hit Yushu and destroyed its ______ (beautiful) completely.

    —It's a great pity.