"aisle-oil," "bike-book," "lock-luck": more pairs to practice!

Here's an update of even more minimal pairs that have been added to the site recently. (Minimal pairs are two words that are the same except for one sound.)

long i/oi sound (aisle/oil)
long i/short u (fine/fun)
long i/ow sound (cried/crowd)
long i/aw sound (dry/draw)
long i/other u (bike/book)
short o/short u (lock/luck)