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keep one on the edge of one's seat (vogeler); keep on the edge of one's seat (vogeler); keep someone/something on tenterhooks (bookworm); prolong the agony (lexicographer); keep someone on their toes (triumfov); keep somebody on the edge of their seat (Пр. You must rent this video. It keeps you on the edge of your seat right up to the end. Mira_G); keep somebody on the edge of their chair (to make you very excited or nervous because of uncertainty Mira_G); keep honest (The striker mixed up his shots to keep the goalie honest SirReal); keep in suspense (VLZ_58)

be nail-biting (зрителя; о триллере или ужастике Bartek2001)

keep someone on one's toes (Taras)

hold in suspense (Andrey Truhachev)

keep guessing (In show business, it's important to keep your audience guessing, to keep them engaged. george serebryakov)

keep somebody on their toes (to force someone to continue giving all their attention and energy to what they are doing КГА)

держать в напряжении: 23 Phrasen in 8 Thematiken