1 . We sent out over 1,000 letters that day but the r________ (回复) rate has been low. （根据中英文提示单词拼写）

2 . The famous star made no ________ (respond) to the question that the reporter asked.(所给词的适当形式填空)

3 . Posting what you are looking for on social media probably won’t result in a useful ________(respond). (所给词的适当形式填空)

4 . Although this reason might not be true, such a ________（respond）was understandable. （所给词的正确形式填空）

5 . None of the students ________ to her question; in other words, her question failed to get a ________ from any of the students.(respond) (所给词的适当形式填空)

6 . The teacher’s question failed to get a ___________ (respond) from any of the students. (所给词的适当形式填空)

7 . These comments came in ________ (respond) to specific questions often asked by local newsmen. (所给词的适当形式填空)

8 . He waits for a __________ (respond) but doesn’t get one. (所给词的适当形式填空)

9 . I suggested he work out a new plan but he didn’t make a response ________it. (用适当的词填空)

10 . I am writing in ___________ (respond) to the questions you asked in the last letter. (所给词的适当形式填空)