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