2 Complete the sentences. Use the verbs in brackets.
1 If tyrannosaurus rex
(not have) big jows, it
(not be able to cat smaller dinosaurs
2 People
(be) interested in dinosaurs
many years
3 Dinosaurs
(study) in the future
4 The fossils that
(hind already
(lell)
scientists a lot about life in the past
5 They
(discover) that mammals and dinosaurs
(live) at the same time
6 Something
(kill) the dinosaurs but the mammals
(go on) living​

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