Exercise 1
action
cil in the blanks in the sentences below, using verbs in the simple
present form to express eternal truths.
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ad of
vays
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a. Most snakes ............ (lay) eggs, but the python ............ (give)
birth to young ones.
b. People who ............ (work) for long hours in the sun often
(get) sun burnt.
c. Computers ............ (store) large amounts of data.
d. Magnets ............ (attract) iron filings.
e. Plants ............ (produce) their own food through the process of
photosynthesis. During this process, plants ............ (take in)
carbon dioxide from the air and ............ (give out) oxygen.
f. Our lungs ............ (expand) when we ............ (breathe in) and
... (contract) when we ............ (breathe out). The lungs
............ (have) tiny blood vessels which are called capillaries.
Oxygen ............ (go) directly into the blood through these
capillaries. The heart ............ (pump) blood to different parts of the
body.
Answers
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4
Explanation:
a) lays, gives
b) work
c)stores
d)attracts
e) produce, takes in
f) expands,breath in , contacts , breath out , has ,goes pump s
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