ممنون از راهنماییهای دوستان عزیز - من یک هفته دیگه باید امتحان بدم واسه همین زیاد سوال میکنم - خلاصه ببخشید
11.In jazz music, a riff is a simple melodic figure, _________ and repeated several times.
(A) usually one or two measures lasted
(B) lasted one measure or two usually
(C) is lasting one or two measures usually
(D) usually lasting one or two measures
کلید جواب من D هست - میشه توضیح بدید به چه دلیل؟
12.At its center, the sun has a density of over a hundred times _________ and a temperature of 10 to 20 million degrees centigrade.
(A) that of water
(B) of water
(C) than that of water
(D) water
از لحاظ گرامری در این سوال چرا A جواب هست؟
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