46. At the entrance, Peter was waving his arms to __________ his father's attention.
A. attach
B. draw
C. shape
D. conduct
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47. Young mothers __________ to be too idealistic about the pleasures of motherhood.
A. confine
B. link
C. shift
D. tend
48. The team will build software to help the public __________ to the work of this charity.
A. contribute
B. fulfill
C. survive
D. explore
49. There is a general __________ that smoking is harmful.
A. fellow
B. fame
C. origin
D. awareness
50. Sometimes high temperature may __________ in death of the plants.
A. suffer
B. exist
C. render
D. result