1.My grandfather is over 95 and he is.......... pretty poor health these dáy

A.on B. to C.with D.in

2.Joe congratulated Tony............ passing the exam

A.on B.at C.with D.about

3.The bad waether was blamed.... the series of power cuts

A.on B.For C.by D.with

4.It's dificult to pay one's bills when prices keep......

A.rising B.growing C.gaining D.raising

As eye contact has the ability to regulate the flow of communication it is an important .... of interpersonal communication

A.way

B.nethod

C.approach

D.channel

My father shouted at me.... made me feel sorowful

1.circle the word with a different stress pattern from the others

1.A.disaster B.pollution C.permanent D.eruption

2.A.volcano B.illustrate C.aquatic D.official

3.A.tornado B.typhoon

C.earthquake D.tsunami

4.A.radiation B.groundwater

C.absolutely D.terribly

5.A.poisonous B.natural

C.dramtic D.logi al

a. \(\frac{x-3}{x-2}+\frac{x-2}{x-4}=-1\)

b.\(\frac{x+16}{49}+\frac{x+18}{47}=\frac{x+20}{45}-1\)

c.\(\frac{7x-1}{2}=5+\frac{9-5x}{6}\)

d.\(\frac{3x-9}{x+1}-2=\frac{4x}{x+1}\)

A.(X+16/49) +(x+18/47)=(x+20/45)-1

B.(x-3/x-2)+(x-2/x-4)=-1

C.(4x-10).(x+6)=0

D.7x-1/2=5+(9-5x/6)

E.3.(7x-1)=30+9-5

F.(3x-9/x+1)-2=4x/x+1

Viết chuơng trình có sử dụng lệnh While...do:
a. tính tích của N số tự nhiên dầu tiên
b. tính tích của 10 số tự nhiên đầu tiên
c. tính hiệu của N số tự nhiên dầu tiên