He wins the Nobel Prize for his outstanding _________to physics.
A.contribution B.conclusion C.addition D.explanation
All the neighbors admire this family _____ the parents are treating their child like a friend.
A.why B.where
C.which D.that
A good advertisement often uses words ________people attach positive meanings.
A.that B.which C.with which D.to which
The students ________ parents work in the USA speak English very well.
A.whose B.their
C.whom D.who
Running a company calls for intelligence, patience and a lot of experience._______, it's not an easy thing.
A.In conclusion B.On the other hand
C.First of all D.On the contrary
假定你是李华。你市最近天气变化大，许多市民都因此患了感冒。请你用英语给在你市留学的美国朋友Susan写封信，提醒他采取措施，预防感冒。内容包括：
1．关注天气变化，及时加衣物；
2．适当运动，注意饮食；
3．避免与感冒患者接触。
注意：1．总词数100左右；
2．可以适当增加细节，以使行文连贯。
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