Choose the correct option to fill in the blank

Choose the correct option to fill in the blank.
(Chọn đáp án đúng để điền vào chỗ trống.)
1.
Is Fansipan ________ mountain in the world?
A. highest
B. the highest
C. Both A & B are correct.
2.
Do you think that this test is ________ we've ever taken?
A. the easiest
B. the easiest one
C. Both A & B are correct.
3.
My bedroom is ________ my brothers' bedrooms.
A. tidier than
B. the tidiest
C. the most tidy
4.
The white dress is ________ but ________.
A. nicest – the most expensive
B. the nicest – the cheapest
C. nicest – cheapest
5.
What is the ________ month of the year?
A. hotest
B. the hottest
C. hottest
6.
The dictionary is ________ in the bookshop.
A. the thickest
B. the thickest than
C. thickest
7.
This dress is ________ than that one.
A. more large
B. larger
C. the largest
8.
Do you think that it's ________ holiday we've had?
A. the worst
B. bad
C. worse than
9.
What is ________ lake in the world?
A. the deepest
B. the largest
C. Both A & B are correct.
10.
This is ________ moment in my life.
A. happier
B. the happiest
C. the most happy