問題詳情
13.The frog was sitting___________ on a lily pad. Suddenly, a mosquito flew by. The frog snatched the mosquito with its tongue and ate it. It then sat still again, waiting for its next prey.
(A)motion
(B) motionless
(C) motionlessly
(D) motionlessness
參考答案
答案：C
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)