There’snosuchthingaslivingalone.Nevermindifyou’re61onlypersoninyourhouseandhavenodognocatnotevenfish.Youstillhavegotseveralbillion62(roommate)—andsodow

Question

   There’s no such thing as living alone. Never mind if you’re   61   only person in your house and have no dog no cat not even fish. You still have got several billion   62  (roommate) — and so do we all. Some of them are harmless some are   63   (actual) helpful and some could even kill you. They are of course bacteria fungi( 菌类 ) and viruses and like it or not they’re on you around you and deeply within you. The fact that bacteria life is everywhere is not   64  (surprise). It’s something you   65  (learn) from your childhood when your mother told you not to drink water from someone else’s glass. There are lots of bacteria   66   are living in your tea kettle. There are bacteria   67   (sleep) with you on your bed. Scientists are beginning   68    (realize) the richness of the microbiome( 微生物群系 ) — which is as complex as the ones   69   (find) in oceans rainforests deserts and woodlands. Your house has a microbiome and   70   do you.

Answer 1

61. the    62. roommates   63. actually   64. surprising   65. learned/learnt 

66. which/that  67.sleeping      68.to realize  69.found       70. so