1b00Hi, everyone! Here are two uncountable nouns. But they are connected with "and". At this point , can we use "are" in the blank? Is it "C"?02b02br 02br 01b00The speed 01i01u00and02u02i00 the direction of clouds .........01u00by02u00 the speed and direction of the clouds.02br 02br 02b00A- determines02br 00B- is determined02br 00C- are determined02br 00D- determine02br 00E- has been determined0-
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0 only c 0-
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0 only c 0-
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0I have seen the word speeds in news many times: e.g., "the waves travelled at jetliner speeds". Is speed really uncountable?02br 02br 00What's the difference between "The speed and the direction of clouds" and "the speed and direction of the clouds"? 0-
0In the interests of economy, I post here what I have written elsewhere:02br 02br 01i00_________02i02br 02br 00Probably in this particular case, most native speakers would choose a plural verb; but if the speaker views "speed and direction of clouds" as a single phenomenon, or two very closely connected phenomena, he may well use a singular