[ Modal Auxiliaries ]
The teacher was speaking very fast. We ______________________ everything.
A. Wouldn’t understood
B. Couldn’t understand
C. Mustn’t understood
D. Shouldn´t understood

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A. saves
B. keeps
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Maths is ____________ than science.
A. more easy
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In the example below, what is the coordinate conjunction joining?
Tom will bring the chairs, or Mary can get them from the closet.
A. words
B. phrases
C. sentences/ clauses