Fill in: vote, struggles, come, breathe, observing Tom … in chemistry. We should get him a tutor.

We can learn a lot about science by ….the natural world. 

How did Einstein … up with the theory of relativity?

We are going to … for a new class president today.

Sally’s asthma medicine helps her … better.

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владгалимуллин    1   10.09.2020 00:03    9