﹣Excuse me，can I borrow this book？
﹣Sure，but you return it by the end of this term.（ ）
| A． |
can |
B． |
can't |
C． |
must |
D． |
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
Can I come today or tomorrow？
is OK．I'm busy today and tomorrow．（ ）
A．EitherB．NeitherC．EachD．None