Question

【题目】Don't stay up too late. you will probably be late for school tomorrow.
A.and
B.so
C.but
D.or

Answer 1

【答案】D
【解析】句意：不要熬夜太晚，要不然你就会明天上课迟到。A. and和，又；B. so因此；C. but但是；D. or否则，要不然。根据句意，故选D。