Theengineersinthislabspentseveralweeks_______theirplansforthenewbicycle.
A、countingHealwayshasalotof_______ideasinhismind,andsometimeswedonotevenknowwhatheisthindingabout.
Weare_______attherapidprogressMarkhasmadeinthissemester.
John_______tobeapoliteman.Butinfactheisveryrude.
Whenmakingmoderncameras,peoplebeganto_______plasticsformetal.
Withthe_______ofMary,allthegirlstudentsareeagertogototheparty.
