30. The elephant I saw in the zoo ate _____ all the things the visitors gave it.
| A．up | B．at | C．out | D．Off |
He is running＿＿＿＿the wind towards the station＿＿＿＿＿
Tom running ＿＿＿＿＿＿＿＿the right.
| A．down； and； on | B．against； with； on |
| C．for； with； in | D．with； while； to |
I don’t think you can work out the maths problem＿＿＿＿her help.
| A．since | B．unless | C．with | D．without |
My uncle lives＿＿＿＿116 Changhe Street. His room is ＿＿＿＿the sixth floor.
| A．at； on | B．to； at | C．on； in | D．of； to |
The old man died＿＿＿＿＿＿ cold ＿＿＿＿＿＿＿ a cold night.
| A．from； at | B．of； in | C．of； on | D．for； during |
The trees ＿＿＿front of the house are ＿＿＿the charge of Mr. Li.
| A．in； in | B．at； in | C．in； by | D．from； in |