The picture looks very beautiful _____ the light wall.
8. – Who will be sent to meet the headmaster? - I’ve_________a car to pick him up at the airport.
7.Your mother is coming. What present_______for your birthday?
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.
20.Helen devoted herself__________to her research and became a top scientist in the field of applied physics.
19.Vitamin D helps our bodies make a special chemical, and this special chemical,________,affects our brains, making us feel happy.