1.occur 替换think of

Suddenly I had an idea that someone had broken into my house.

An idea occurred to me that someone had broken into my house.

It occurred to me that someone had broken into my house.

2.devote替换spend

He spends all his spare time in reading.

He devotes all his spare time to reading.

3.seek替换want / look for

They sought (wanted) to hide themselves behind the trees.

4.average 替换ordinary

I’m an average (ordinary) student.

5.but替换very

The film we saw last night was very interesting.

The film we saw last night was nothing but interesting.

The film we saw last night was anything but boring.

6.seat 替换sit

On his way to school, he found an old lady seated (sitting) by the road, looking worried.

7.suppose 替换should

He is supposed to (should) have driven more slowly.

8.appreciate 替换thank

Thank you very much for your help.

We appreciate your help very much. / Your help is much appreciated.