Pregunta 1
Pregunta
They often listen to music.
Pregunta 2
Pregunta
She is reading the newspaper now.
Pregunta 3
Pregunta
These cars are produced in Japan.
Pregunta 4
Pregunta
Alan teaches geography.
Pregunta 5
Pregunta
German is spoken in Austria.
Pregunta 6
Pregunta
Lots of houses were destroyed by the earthquake in 1906.
Pregunta 7
Pregunta
Henry Ford invented the assembly line.
Pregunta 8
Pregunta
The bus driver was hurt yesterday.
Pregunta 9
Pregunta
You should open your workbooks.
Pregunta 10
Pregunta
Houses have been built.
Pregunta 11
Pregunta
Do [blank_start]an experiment.[blank_end]
Respuesta
-
an experiment.
-
AN experiment
-
an experiment
Pregunta 12
Pregunta
Test [blank_start]results.[blank_end]
Respuesta
-
results.
-
result
-
ressults.
Pregunta 13
Pregunta
[blank_start]Make[blank_end] a hypotesis. Make a discovery.
Pregunta 14
Pregunta
[blank_start]Observe[blank_end] results, an experiment, a reaction.
Pregunta 15
Pregunta
[blank_start]Wear[blank_end] protecting clothing.
Pregunta 16
Pregunta
Chemists [blank_start]wear protective clothing[blank_end] when doing experiments.
Respuesta
-
wear protective clothes
-
wear protective clothing
-
wear pratective clothes
Pregunta 17
Pregunta
Biologists [blank_start]check the results[blank_end] of their experiments by repeating them
Respuesta
-
check the results
-
checking the results
-
to check the results
Pregunta 18
Pregunta
Chemists [blank_start]observe reactions[blank_end] when they mix.
Respuesta
-
watch reactions
-
observe reactions
-
look to reaction
Pregunta 19
Pregunta
Scientists [blank_start]make a hypothesis[blank_end] after observation.
Respuesta
-
make a hypothesy
-
make a hypothesizes
-
make a hypothesis
Pregunta 20
Pregunta
A biologist [blank_start]does experiments[blank_end] with cells.
Respuesta
-
do experiments
-
make a hypothesis
-
does experiments