23、Having checked the doors were closed, and _______ all the lights were off, the boy opened the door to his bedroom.

22、David is not a man who can be relied on. That’s ____________ she has made up her mind to leave him.

21、He made a suggestion ____________ the ban be carried out in no time.

20、I’ve never heard of the book ____________ title is “Red Star Over China”.

19、It is generally considered unwise to give a child ____________ he or she wants.

18、Helen was too frightened to move when she ________ _________ _____（看见）a snake.

17、He often dreams of ____________ ____________（定居）in Australia, a country with beautiful views.

16、Standing on the top of the tower, you can see the great Lushan Fall ____________ ____________ ____________（在远处）.

15、Li Yundi ____________ ____________ ____________ ____________ playing the piano（有弹钢琴的天赋）and he has been awarded lots of prizes.

14、Finally, they succeeded in arriving at their destination at dusk.

Finally, they ____________ ____________ arrive at their destination at dusk.