___________[A] Since [B] If [C] Unless [D] While

Since the weather is fine we ______walk for a while.A．mayB．mustC．might as wellD．will

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___________A] when [B] since [C] for [D] whereas

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_________[A] if [B] unless [C] as [D] lest

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_________[A] So [B] Since [C] As [D] Thus

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_________(59)A.unless B.ifC.as D.since

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It worried her a bit ____ her hair was turning grey.A.while B.that C.if D.for

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________ he hs limited technicl knowledge the old worker hs lot of experience.SinceB.UnlessC________ he hs limited technicl knowledge the old worker hs lot of experience.Since B.Unless C.s D.lth

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