《When was it invented?》SectionA PPT
《When was it invented?》SectionA PPT第4页

Exercise

1. Trees __________ (water) in our school every three days. 2. The zoo ___________ (visit) by lots of children on weekends. 3. A Journey to West ________ (show) on CCTV every summer. 4.On Christmas Day, children wake up early and can’t wait ______ (open) the boxes of presents. 5. We’ll have a chance _____ (see) the flower show this weekend.

to open

is shown

are watered

to see

is visited