A dinosaur’s long tail _____ (can / could) help it keep its balance as it ran.
could
Oops!
Check
Okay!
Check
baam
Lose 20 points!
Oops!
magnet
Take 10 points!
Okay!
gift
Win 10 points!
Okay!
baam
Lose 25 points!
Oops!
10
Some dinosaurs could _____ (running / to run / run) quite fast.
run
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Check
Okay!
Check
15
(Could dinosaurs / Dinosaurs could) _____ make noises?
Could dinosaurs
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20
Nowadays, scientists _____ (can / could) learn about dinosaurs by studying their fossils.
can
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25
Scientists thinks that the Parasaurolophus _____ (can use / could use / could using) its loud call to warn the others when a meat-eating dinosaur was near.
could use
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Check
Okay!
Check
25
Dinosaur _____ (can’t / couldn’t / could) give birth.
