to advance; to go forward; to precede; to go ahead (of); to make progress; to improve; to deepen
strange; odd; peculiar; queer; curious
although; despite; whereas; while; if only; I wish
convenient; favorable; favourable; expedient; expedience
a lot; lots; enough; sufficient; enough; too many
observation; survey; watching
extraordinary; preposterous; outrageous; absurd
strange; unfamiliar; mysterious; not knowing the true nature
I wonder; should I?; is it?; I wish that; I hope that
some time ago; recently; lately; last (Sunday, etc.); previous
human experiment; human experimentation; experiment on a living person
to repeat; to do something over again
before long; soon; almost; nearly; finally; in the end
to manufacture; to produce; to raise (crops); to invent; to dream up; to create
cheerful; lively; lighthearted
by all rights; properly speaking; legally speaking
strict prohibition; ban; interdiction
reason; significance; cause; piece of information that one has heard; I hear that ...; it is said that ...
talkative; loose-lipped; persiflage; frivolous talk
grateful; thankful; welcome; appreciated; evoking gratitude
faint; dim; weak; poor; wretched; meagre
to begin to open; to come out; to smile broadly; to come apart at the seams (clothes)
particle indicating that the speaker is trying to recall some information
sure; certain; reliable; trustworthy; If I'm not mistaken; If I remember correctly
be supposed or expected to (do); be sure to (do); ought to (do)
had better ...; had better not ...
forward; frontward; ahead; rectangular front
speaking voice; talking voice
to hurry; to rush; to hasten; to make something happen sooner
direct unforked road; straight path
to let something (or somebody) go past; to do too much
unnatural; affected; studied; forced
surprise; astonishment; wonder; amazement
meanwhile; in the meantime
getting closer; drawing nearer; being not much different; being near (age, skill, etc.); becoming close (i.e. friendly); becoming intimate