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1. In a study
( describe ) the technology, the researchers had 100 volunteers type the word "touch" four times
(use)the smart keyboard.
【考点】
动词现在分词;
【答案】
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语法填空（单句）
普通
课时演练
换一批
1. When I walked into the living room, on the table I saw two
(信封) with my names on them.
单词拼写（单句）
普通
2. Her hand was slightly shaky, but she wrote "Father Christmas, the North Pole" on the
(信封).
单词拼写（单句）
普通
3. Recently a survey
(compare) prices of the same goods in two different supermarkets has caused a heated debate among citizens.
语法填空（单句）
普通