Though he is in his late sixties, the well-known biologist begins each day ____ a sense of adventure and a sense of curiosity

I don’t think English is __ a language as Russian.

o you think of her voice—-It______very sweet, I should say

Part of the family________out on holidayThey are supposed to be back at the end of this month[ ]

There’s a feeling in me __________ we’llnever know what a UFO is not ever.