Teachers have to constantly update their knowledge in order to maintain their professional ___.
A．consequence B．independence C．competence D．intelligence
It was never clear _____the man hadn’t reported the accident sooner.
A.that B.how C.when D.why
In that school, English is compulsory for all students, but French and Russian are___
A.special B.regional C.optional D.original
Between the two parts of the concert is an interval, ___the audience can buy ice-cream.
A.When B.Where C.that D.which
——Tommy is plannning to buy a car.
——I know. By next month, he ___enough for a used one.
A. saves B.saved C.will save D.will have saved
The fact that so many people still smoke in public place ___that we may need nationwide campaign to raise awareness of the risks of smoking.
A.suggest B.suggests C.suggested D.suggesting
