1.There be …doing…

2.Great changes have taken place in…

3.sth is/are well worth v-ing.

4.It seems/seemed that…

5.It seems (im)possible to v…

6.It’s an honor to…

7.I’m/We’re not allowed to …

8.I’m afraid of making mistakes…

9.It is said that…

10.As the saying goes, …

11.…and …. are different in many ways.

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