My family share the housework My father helps my mothe
A.wash through
B.wash over
C.wash away
D.wash up

When their dad came home the kids the Christmas tree
A.have decorated
B.are decorating
C.decorate
D.were decorating

interesting the project is the more the students can
A.Most
B.The more
C.More
D.Most of

My aunt bought a watch last week red Korean nice Kore
A.red Korean nice
B.Korean red nice
C.nice Korean red
D.nice red Korean

The football match is interesting was it has it isnt
A.was it
B.has it
C.isn't it
D.wasn’t it

The longest bridge of the country last year was built
A.was built
B.builds
C.was building
D.has built

The longest bridge of the country last year was built
A.was built
B.builds
C.was building
D.has built

Cho hàm số f x có đạo hàm f x = x^2 x - 1 m - x - 3
A.\(0\)
B.\(5\)
C.\(2\)
D.\(3\)

Cho hàm số f x có đạo hàm cấp một là f x = x x - 1 x
A.\(\left( {0;1} \right)\)
B.\(\left( { - \dfrac{1}{3};0} \right)\)
C.\(\left( {1;3} \right)\)
D.\(\left( {2; + \infty } \right)\)

Kim loại đầu tiên mà người Tây Á và người Ai Cập phát
A.đồng thau.
B.nhôm.
C.sắt.
D.đồng đỏ.