A.to worry | B.worrying | C.worried | D.worry |
A.Reading | B.Having read | C.To read | D.Read |
A.stare at; glare at | B.look at; gaze at | C.observe; glance at | D.glare at; watch |
A.introduce to | B.be introducing | C.be introduced to | D.have been introduced to |
A.hear from | B.receive a letter from |
C.hearing from | D.getting from |
A.one | B.this | C.that | D.it |
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