We were told not to touch the equipment
题型:选择题
问题:
We were told not to touch the equipment in the laboratory unless ________. [ ]
A. allowed to do
B. allowing to do
C. allowed to
D. allowing to
We were told not to touch the equipment in the laboratory unless ________. [ ]
A. allowed to do
B. allowing to do
C. allowed to
D. allowing to