45. Shall we buy a good dictionary to study foreign language better?
46. Mr Chau got annoyed with me because I did not attend the meeting.
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47. They continued to work although it rains heavily.
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48. The reason of his leaving early was that the room was very crowded.
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49. The children could not go swimming because of the rough sea.
50. She is always a better performer than her mother used to.
Answers:
45. This is the first time
46. She last
47. When did she
48. Billl asked
49. If you
50. That man