The reporter said that UFO from east to west when he saw it.
| A．was moving | B．is moving | C．move | D．moves |
二：语法和词汇知识（共20小题，每小题1分，满分20分）。
6._________we must keep in mind is that we must protect water and use it wisely.
| A．Why | B．What | C．Where | D．How |
20．Helen devoted herself__________to her research and became a top scientist in the field of applied physics.
| A．seriously | B．extremely | C．entirely | D．Strictly |
19．Vitamin D helps our bodies make a special chemical, and this special chemical,________,affects our brains, making us feel happy.
| A．in turn | B．in particular | C．in advance | D．in short |
18．Everyone must have known the death of the waitress, __________?
| A．must they | B．mustn’t they | C．haven’t they | D．have they |
17．---Tony is such a selfish person.
---I agree. Never again________with him.
| A．I will deal | B．I do deal | C．will I deal | D．do I deal |