21.   Some societies expressed doubts about the cost and efficacy of the proposal, whilst others were ready to endorse its extension to all firms.

22.   Several environmental groups have expressed doubts.

23.   Environmentalists are expressing doubts about the benefits of using fuel based on oilseed rape in public transport, as in a recent experiment in the UK.

24.   If I might secondly Mr Mayor address some of the concerns that have been expressed and no doubt, will doubt be expressed later on.

25.   Allison of the Center for Public Integrity expressed his doubts about the tactic.

26.   Alone, of all the defense witnesses in this phase of the trial, she openly expressed her doubt about his guilt.

27.   American anti-narcotics officials have privately expressed similar doubts about the contractors.

28.   American reviewers continued to praise his virtuosity, but expressed doubts about his depth as an interpreter.

29.   Although Karmanos insisted that he wanted to stay in Hartford, Mayor Mike Peters expressed doubts about that Wednesday and accused Karmanos of blackmail.

30.   Although Whitman favored trigger locks long before many political figures in the state, she has expressed doubts about whether the technology to produce smart guns has advanced enough.