Topics: Prepositions - Conjunctions
The community swimming pool is not to be used at any time _____ a trained lifeguard is on duty.
A. in fact
B. unless
C. in case
D. otherwise
Preview next quiz:
_____ graduating from Laccord University, Jing Xiong worked for Osiris Financial Service.
A. During
B. After
C. Next
D. Above