Utter the sounds only, and pronounce very distinctly.

br.--Bred, brag, brow, brim, brush, breed, brown.
bz, bst.--Fibs, fib'st, robs, rob'st, rubs, rub'st.
bd, bdst.--Fibbed, fib'd'st, sobbed, sob'd'st, robbed, rob'd'st.
bl.--Blab, blow, bluff, bliss, stable, babble, gobble.
blz, blst.--Fables, fabl'st, nibbles, nibbl'st.
bid, bldst.--Fabled, fabl'd'st, nibbled, nibbl'd'st.

dr.--Drab, drip, drop, drag drum, dress, drink.
dz, dst.--Rids, rid'st, adds, add'st, sheds, shed'st.
dl.--Addle, paddle, fiddle, riddle, needle, idle, ladle.
dlz, dlst.--Addles, addl'st, fiddles, fiddl'st.
dld.--Addled, fiddled, huddled, idled, ladled.

fr.--Fret, frog, from, fry, fresh, frame, free.
fs, fst.--Cuffs, cuff'st, stuffs, stuff'st, doffs, doff'st.
ft.--Lift, waft, drift, graft, soft, theft, craft, shaft.
fts, ftst.--Lifts, lift'st, wafts, waft'st, sifts, sift'st.
fi.--Baffle, raffle, shuffle, muffle, rifle, trifle, whiffle.
fls, flst.--Baffles, baffl'st, shuffles, shuffl'st, rifles, rifl'st.
fld, fldst.--Baffled, baffl'd'st, shuffled, shuffl'd'st.

gr.--Grab, grim, grip, grate, grant, grass, green.
gz, gst.--Begs, beg'st, digs, dig'st, gags, gag'st.
gd, gdst.--Begged, begg'd'st, digged, digg'd'st.
gl.--Higgle, joggle, straggle, glib, glow, glaze.
glz, glst.--Higgles, higgl'st, juggles, juggl'st.
gld, gldst.--Higgled, higgl'd'st, joggled, joggl'd'st.