providing 测验
EN
[-aɪdɪŋ] 
US 动提供 (provide的现在分词)
- 选择每个问题的最合适的答案。
- 问题 1 :
- providings
- providing
- 问题 2 :
- providings
- providing
The city is _________ special event shuttles on the Fourth of July.
Extensive upgrades to the Arecibo antenna will be completed this spring, _________ dozens of Toutatis-quality detections per year, spacecraft-quality images of the closest approachers, and hundred-pixel images of dozens of main-belt asteroids ( 9 ).