. When they came to the center of the fo
题型:选择题
问题:
. When they came to the center of the forest, the visitors found themselves ____ ___ by wildlife.
A.surrounding
B.surrounded
C.to surround
D.surround
. When they came to the center of the forest, the visitors found themselves ____ ___ by wildlife.
A.surrounding
B.surrounded
C.to surround
D.surround