Today there are weather satellites that beam down informatio
Câu hỏi
Nhận biếtToday there are weather satellites that beam down information about the earth’s atmosphere. In the last two decades, space explortion ______ great contributions to weather forecasting.
Đáp án đúng: C
Lời giải của Tự Học 365
Giải chi tiết:
Đáp án là C. Câu thiếu thành phần động từ. Với cụm trạng từ “In the last two decades” câu sẽ chia ở thì hiện tại hoàn thành.
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