— Are there any flights for Hong Kong tomorrow?— _______ Why not give a call to find it out?
Not until the early years of the 19th century _____ what heat is.
_____ food is stored deep in the tunnel for the use of war.
____ she couldn’t understand was _____ fewer and fewer students showed interest in her lessons.
She looks forward every spring to ____ the flower-lined garden.
It is not socially ______ for parents to leave children unattended at that age.