Khi nói về nhân tố đột biến có bao nhiêu phát biểu sau
A.1
B.4
C.2
D.3

Cho hình chữ nhật ABCD có phương trình cạnh ABCD lần lư
A.\(7x - 3y - 32 = 0\)
B.\(3x - 7y - 32 = 0\)
C.\(3x + 7y - 32 = 0\)
D.\(7x + 3y - 32 = 0\)

Her mother has been working for thirty years is retiri
A.which
B.that
C.whom
D.who

Charles is very keen collecting stamps in his leisure
A.of
B.on
C.in
D.at

Charles is very keen collecting stamps in his leisure
A.of
B.on
C.in
D.at

The smell of the sea his childhood took after took him
A.took after
B.took him in
C.took it for granted
D.took him back to

Canned food is not as healthy as fresh food is it isnt
A.is it
B.isn't it
C.doesn't it
D.does it

It was long book that I couldnt finish it so such too s
A.so
B.such
C.too
D.such a

Singapore is small city - state in Southeast Asia the a
A.the
B.an
C.(no article)
D.a

The more cigarettes you smoke you will die the harder
A.the harder
B.faster
C.the easier
D.the sooner