在大棚种植瓜果蔬菜的过程中,如果向大棚内适当增加二氧化碳的浓度,那么瓜果蔬菜能够普遍高产。其原因是增加二氧化碳浓度能够( )
What’s ________ name? His name is Zhang Peng. A. his B. her C. your
Let ________ clean the blackboard. A. I B. me C. our
Can I ___________ some noodles, please? A. like B. has C. have
Give me ________ pens. A. two B. an C. a
How many ________ can you see? A. apple B. cats C. dog