The sedimentary rock __________ so old! (present - be)
is
The layers of rock __________ the dinosaur bones. (present - hide)
hide
The ravine __________ at the bottom of the mountain. (present - be)
is
The ash __________ from the volcano. (present - explode)
explodes
The dinosaurs __________ herbivores. (past - be)
were
Her favourite pastime __________ painting. (past - be)
is
The skull __________ very old. (present - be)
is
The paleontologist __________ dinosaurs. (present - research)
researches
The T-Rex __________ meat. (eat - present)
eats