【C4】A．clearB．markedC．apparentD．firm

【12】A．clearB．cleanC．clearlyD．cleaning

【C6】A．remarkedB．markedC．unmarkedD．unremarked

David has left a（n)______message to Lois which nobody can understand except her.A．clearB．i

A.small number of firms have ceased tradin

A small number of firms have ceased tradin

He tried to 【assemble 】 his thoughts.A. clearB. s