I .............. a strange noise in the backyard.
noticed
appeared
performed
wondered
People with color- .............problems face many difficulties in everyday life
feature
vision
symbol
difference
The library had................ books on various subjects.
recognize
numerous
suffer
temporary
A beautiful rainbow started to ................. in the sky.
publish
insist
press
appear
Throat infections are quite ................ in children
similar
precious
common
random
There's no ................. between the two houses.They are the same.
mistake
difference
similarity
diverse
Who created the Ishihara test?
A Japanese eye doctor
An Australian artist
A Chinese surgeon
A French scientist
People with color-vision problems often cannot see...........and ..........clearly.
pink - blue
red - green
black - white
blue - yellow
The Ishihara test includes...............made up of dots.
mistakes
lines
visions
circles
Shinobu Ishihara published the Ishihara test in ......................
1917
1809
1923
1970
In the Ishihara test,on each page there is a circle made up of...................dots.
particular
common
numerous
incorrect
In the Ishihara test the dots appear in ..............colors and sizes.
same
similar
various
wrong
Seeing red and green ..............is the most common color-vision problem.
incorrectly
variously
correctly
differently
The Ishihara test was...........by a Japanese eye doctor.
appeared
created
pressed
noticed
There is a..................for the arrangement of the dots in Ishihara test.
technique
vision
reason
problem
The Ishihara test helps people to...........if they have color-vision problems.
locate
appear
find out
create
