9.Do you think it worthwhile to spend so much time and money cloning a cow?

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• 9.Do you think it worthwhile to spend so much time and money cloning a cow?
• You should give your seat_______ the old woman,she is lame____the right leg.A.to,on   B.for,in   C.to,in   D.with,inWe look forward to the week_____,for we'll have a party.  A.the following  B.that  follows  C.  following  D.followedPlease fill in the form___  ink  A.with  B.in  C.at  D.ofIt is no use ____ so much money and time on it.  A.spend  B.spends  C.to spend  D.spendingHow nice to see you here again.I____you ____ still sick in bed.A.think,are 
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• I don't think we need send so much money tohim反义疑问