10.
$\text{1.}$ had eaten
$\text{2.}$ had you been living
$\text{3.}$ had finished
$\text{4.}$ had already left
$\text{5.}$ had been working
$\text{6.}$ had never seen
11.
$\text{1.}$ c (after)
$\text{2.}$ f (when)
$\text{3.}$ a (while)
$\text{→}$ QKTD + while + QKTD
$\text{→}$ lay the table: đặt bàn
$\text{4.}$ e (and)
$\text{→}$ withdrew: rút
$\text{5.}$ b (while)
$\text{6.}$ d (because)