26.Two rockets supported by a launch tower will lift the space shuttle into space.

→Two rockets,___________________ a launch tower, will lift the space shuttle into space.

25.Detective Sam Peterson took charge of the case.

　 →The case ____________________________________________ Detective Sam Peterson。

24.Police have ruled out the possibility that Justin was taken by aliens.

　 →Police say that______________________________ that Justin was taken by aliens.

23.Lots of creatures, who are white-skinned and had large black eyes, were standing inside the UFO.

　 →Standing inside the UFO were lots of ____________creatures________________________.

22.Mrs Foster become worried when Justin did not show up at the family lunch the next day.

　 → Mrs Foster become worried when Justin did not _____________at the family lunch_______________.

21.People show great interest in his disappearance due to sightings of UFOs.

　 →People _________________________his disappearance _____________ sightings of UFOs.

20.Although we have found some evidence, we are not able ________ the possibility of his being murdered.

[句子改写]

(不改变句意，根据上句完成下句)。

19.Don’t believe him. He is used to ________ an excuse at any time.

18.“_____________your search for the missing boy,” the police office ordered his men.

17.It’s already 10 o’clock in the morning but he ___________ (not) yet.