  We observed five giant molecular clouds (GMCs) in the Large Magellanic Cloud
(LMC) in the 12CO J=1-0 line using the Atacama Large Millimeter/submillimeter
Array (ALMA). The sample includes four GMCs with some signs of star formation
-- either YSOs, H II regions, and/or young clusters -- and one quiescent GMC
without any sign of massive star formation. The data from the ALMA 12 m, 7 m,
and Total-Power arrays are jointly deconvolved to obtain high-fidelity images
at high spatial resolution (3 arcsec = 0.7 pc). The four star-forming GMCs show
very complex structures with clumps and filaments. The quiescent GMC shows a
relatively diffuse, extended emission distribution without prominent clumps or
filaments. This difference is similar to that between structured molecular gas
in Milky Way spiral arms and unstructured gas in the inter-arm regions. We
characterize the difference with the brightness distribution function and
brightness distribution index. In conjunction with other ALMA studies of GMCs
in the LMC, the five GMCs tentatively form an evolutionary trend: from less
structured, quiescent GMCs to more structured, actively star-forming GMCs. A
future ALMA study will be able to map molecular clouds over the LMC and reveal
the evolutionary sequence of molecular clouds.
