Jenny， it's time to practice the piano. you practice， you'll play.（ ）
A．More； betterB．More； worse
C．The more； the betterD．The less； the better
Jerry will succeed in working out the problem ____ he gives up．（ ）
A．IfB．becauseC．soD．unless
We will have a sports meeting in October， but ______knows the date for sure．（ ）
A．everybodyB．nobodyC．anybodyD．somebody
Nowadays some parents spend more time on mobile phones so that they____ care for their kids．（ ）
A．oftenB．seldomC．usuallyD．sometimes
Tina is very____．Her face often turns red while answering questions in class．（ ）
A．shyB．activeC．smartD．outgoing
Would you like something to drink， Mum？
Yes， I'd like a cup of coffee ________ nothing in it．（ ）
A．withB．withoutC．forD．to