Xác định đúng/sai:
38 + 6 = 44
Đúng
Sai
28 + 3 = 211
Đúng
Sai
58 + 8 = 66
Đúng
Sai
A.đúng
B.sai
C.đúng
D.

Trong không gian với hệ tọa độ Oxyz, cho mặt phẳng $(\alpha ):x+y+z-6=0$. Điểm nào dưới đây không thuộc mặt phẳng $(\alpha )$ ?
A.$N(2;2;2)$.
B.$Q(3;3;0)$.
C.$M(1;-1;1)$.
D.$P(1;2;3)$. 

Trong không gian Oxyz, cho mặt phẳng \[\left( P \right):Ax+By+C\text{z}+D=0,\,\,{{A}^{2}}+{{B}^{2}}+{{C}^{2}}\ne 0\] , khẳng nào sau đây là khẳng định đúng?
A.Nếu $A=C=0,B
e 0$ thì $\left( P \right)$ luôn chứa trục Oy
B.Nếu \(A=B=0,C
e 0\) thì $\left( P \right)$ luôn song song với mặt phẳng \(\left( \text{Ox}y \right)\)
C.Nếu $D=0$ thì $\left( P \right)$ đi qua gốc tọa độ
D.Nếu $A=0,B.C
e 0$ thì $\left( P \right)$ luôn song song với trục Ox

Hình chiếu của $M\left( -1;2;0 \right)$ lên mặt phẳng $\left( P \right):z=3$ có tọa độ là:
A.$\left( -1;1;3 \right)$
B.$\left( 0;0;3 \right)$
C.$\left( -2;2;3 \right)$
D.$\left( -1;2;3 \right)$

Chọn đáp án đúng
Phép tính nào sau đây có tổng bằng 63?
49 + 5
59 + 4
58 + 7
A.answer2
B.
C.
D.

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
Before we apply for any jobs, we need prepare a good CV and a ______ letter carefully.
 
A.cover
B.covering
C.covering and cover are correct
D.covers

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
There are usually a lot of seekers _______ one position but only a few of them are ______ an interview.
A.applying/shortlisted
B.applying for/ shortlisted
C.applying for/shortlisted for
D.applying/ shortlisted for

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
New employees have to go through an initial period of ______ when employer will assess their performance provide some training.
A.probation
B.working
C.training
D.assessment

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
Anyone should be ______ for a future job.
A.good at
B.well-prepared
C.good-prepared
D.well

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
My mother offered ______ all the housework for us so that we have more time to study.
 
A.to do
B.doing
C.do
D.does