在改写后的句子中填入适当的词（每空一词），使之与原句意思相同或相近。请将答案填写在答题纸相应的栏目内。
Jack had been playing around me, but now I couldn’t see him anywhere.
Jack had been playing around me, but now he was（1）_______ to （2）_______ （3）_______.
Look at the clock! It’s possible that he will be late for the train.
Look at the clock! He(4）_______（5）_______（6）_______ be late for the train.
They each have made great contributions to the environmental protection.
Each of them （7）_______ （8）_______ greatly（9）_______ the environmental protection.
The group of eight which is made up of eight richest countries in the world is really powerful.
The group of eight（10)_______  (11)________ eight richest countries in the world is really powerful.
It was several minutes before I realized what was going on.
It was several minutes before I was (12)_______  (13)_______  what was (14)________.
Not everything that is best for nature is good for people.
(15)________ that is best for nature (16)_______  (17)________ good for people.
This table is three times as big as that one.
This table is three times (18)________ (19)_________ (20)________ that one.