considerably; fairly; quite
serious; honest; sober; grave; earnest; steady
serious; grave; dignified; solemn
to nod; to bow one's head in assent; to agree
or rather (say); or better (say); or perhaps I should say; or, how should I put it; I mean
sudden; abrupt; urgent; pressing; steep; sharp; rapid
somehow; how; in what way; why; what kind of
to weigh on one's mind; to bother one; to be interested (in); to be curious (about); to feel like (doing); to feel inclined to
somehow or other; for some reason or another; without knowing why
doubt; question; suspicion; dubiousness
vague; ambiguous; shady; disreputable; fuzzy
answer; reply; response; answer; solution; result
to return (something); to restore; to turn over; to turn upside down; to pay back; to retaliate; to respond (with)
that; the matter in question
shivering (with cold); trembling (with fear); shuddering
to stop (an activity); to cease; to discontinue; to cancel; to abandon; to give up
this way; this direction; here; this (one); I; me
together (with); at the same time; in a lump
now that you mention it; come to think of it; that reminds me; on that subject; speaking of which
increasingly; more and more; decreasingly (when declining); less and less
to like; to be pleased with; to be delighted with; to take a liking to; to suit one's fancy
to wrinkle up (one's eyebrows, one's nose); to furrow; to crimple
anxiety; uneasiness; worry; apprehension; fear; insecurity
as expected; sure enough; after all (is said and done); in the end; too; also
very recently; in the very recent past
seriousness; earnestness; truth; sanctity
doubt; suspicion; misgivings; scruples
sudden; abrupt; unexpected; unforeseen
putting that aside; that said; apart from that; anyway; be that as it may
what!; oh; what the heck; what the; damn
marks; points; score; number of items; number of articles
dangerous; risky; awful; terrible; terrific; amazing
mistake; error; accident; mishap; improper conduct (e.g. between man and woman); indiscretion
marking; grading; scoring
being at sea; losing one's bearings; (arch.) disorientation upon waking at night; (arch.) forgetting which house or room to enter
red; crimson; red-containing colour (e.g. brown, pink, orange); Red (i.e. communist); red light (traffic); red ink (i.e. in finance or proof-reading); (in) the red
to write; to compose; to pen; to draw; to paint
(getting a) perfect score; scoring 100; grading students on a scale of one hundred; doing perfectly (in a test); leaving nothing to be desired
dot; spot; mark (in an exam, etc.); grade; point (in a game); score; point (in geometry)
acceptable; satisfactory; approval; being in favour; Pass (grade); Fair
wrong; bad; not allowed; not possible; failing grade
subtle; delicate; difficult; complex; doubtful; questionable
supervision; control; superintendence; director; superintendent; supervisor
to do without being seen (by); to do behind (someone's) back; to do without the knowledge of (e.g. one's parents)
unfair practices; wrongdoing; malpractice; cheating; foul play
to work; to labor; to function; to operate; to commit (e.g. a crime); to perpetrate