it's OK to ...; it's best to ...; it's alright to ...
and; thereupon; because of that
to be sullen; to be offended; to be huffy; to be stuffy; to be stifling; to be muggy
to be very far apart from; to be remote; to be quite different from
hypothesis; supposition; assumption
to jump; to leap; to break up; to close; to hit (e.g. to have a car hit something or someone)
calm; serenity; tranquillity; tranquility
to dress (oneself in); to attire oneself in; to adorn; to pretend; to feign; to affect
hectic; bewildering; bustling; dizzy
to combine; to join together; to join up; to dovetail together
agreement; coincidence; correspondence; conformity
now that you say that; now that you mention it
of late; lately; this part; this point; here
suspicious behavior; acting suspiciously
stupidity; silliness; asininity; imbecility; dim-wittedness
to be scheduled to (do); to be expected to (do)
opening; aperture (e.g. camera); opening one's mouth; beginning to speak; open; broad
to do (something) to spite (someone); to rebuke indirectly; to make an insinuation; to make a display of affection (for each other); to show off a relationship
not factored in; not included in calculations; unaccounted for; unplanned for
to act timid (about doing); to show diffidence; to feel ashamed; to feel guilty
cold; chilly; cold (attitude, stare, etc.); frigid; composed; cool
speaking of ...; when it comes to ...; as for ...; if one were to say ...
in some way or other; one way or another; somehow; only just; barely
secrecy; confidentiality; privacy; one's circumstances (esp. fiscal)
(set of) facial features; looks
shallow; superficial; thoughtless; short-sighted; foolish; silly
simplistic (thinking, idea, etc.); hasty
nature; property; disposition
simmer; bubble out; flow out
two classes; double; two sets
development; growth; development (of a situation, story, etc.); advancement; playing around; having an active sex life
surprise; astonishment; wonder; amazement
continuation; succession; series
trembling (with fear, anger, etc.); shivering (with cold); shaking; quivering
to straighten up one's back (e.g. stand up straight, sit up straight); to hold one's head high
older sister; elder sister; young lady; miss; ma'am
objection; refutation; rebuttal; counterargument
showing no signs of; there being no hint of; (arch.) unthinkable
something; something or other; so-and-so; somehow; anyhow; one way or another
immediately; instantly; with nary a pause; without a moment's delay