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1
Nature and environment
Progress file 3
Electricity
3
Vocabulary
Grammar
My progress
CONTENTS PAGE
Vocabulary
Match the two halves of these sentences.
c
d
a
b
Grammar
3-1
1
2
Write can, may or must in the blanks below.
—________ I finish cleaning our rooms now?—No, you needn’t. You ________ do it this afternoon.
—________ I touch the kettle?—No, you mustn’t. It’s still very hot.
—We ________ use a fridge to keep food fresh.—Yes. A fridge makes our life more convenient.
3
Must
can/may
May/Can
can
3-2
1
2
Write cannot, must not or may not in the blanks below.
My sister _____________ take me shopping today.
You _____________ give a young baby big pieces of food.
I’ve lost my maths book. I _____________ find it anywhere.
You _____________ get off a bus while it is still moving.
3
cannot/may not
must not
cannot
must not
Rewrite these sentences into object clauses.
3-3
1
2
I need to eat more fruit.I think _____________________________________.
Listening to music is a good way to relax.She believes _____________________________________.
When can John finish the task?Can you tell me _____________________________________?
Who will go with us?Do you know _____________________________________?
3
(that) I need to eat more fruit
(that) listening to music is a good way to relax
when John can finish the task
who will go with us
My progress
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