—Do you mind my smoking here? —________
.How can you pass the examination_____ you never attended class?
Don’t touch anything in the lab unless____.A. to be allowed B. allowed C, to be allowing D.allowed to
I hear____ boys in your school like playing football in their spare time,though others prefer basketball.
She may have missed the train,____ she won’t arrive for another hour.
The noise was so _____ that only those with excellent hearing were aware of it.