______useful advice you gave us!( )
What
What a
How
We should keep quiet in the cinema.We speak loudly.( )
A.canB.mustC.needn'tD.mustn't
These oranges look nice,but very sour.( )
A.feelB.tasteC.soundD.look
do you go to a movie?
Twice a week.( )
A.How longB.How soonC.How oftenD.How far
Teenagers have to be 18 years old before they to drive a car.( )
A.are allowedB.will be allowed
C.allow
we work at English,the better grades we will get.( )
A.HarderB.The hardest
C.HardestD.The harder