78. have/ a /experience /of /Mrs. Nga/ working/ doesn’t/ as/ much /librarian.
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79. they /will/ throw/ If rubbish/ into /bin /people/,/ will /the /keep /right /environment/ the /clean/.
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80. learn / from / You / your / a lot /watching/,/ but /can /you / watch / you /TV /much / or/ will too/ hurt/ shouldn’t/ eyes/.
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81. talking/ and /are/ out/ to/ checking /different/ fire /firefighters/ strucks/ We.
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78. Mrs.Nga doesn't have much experience of working as a librarian.
79. If people throw rubbish into the right bin, they will keep the environment clean.
80. You can learn a lot from watching but you shouldn't watch too much or you will hurt your eyes.
81. We are talking and checking out firefighter to different fire strucks.
