$\text{11.}$ was driving/ happened
$\text{→}$ When/ While + QKD/ QKTD, QKD/ QKTD: hợp nghĩa
$\text{12.}$ Was you watching/ phoned
$\text{13.}$ broke/ was doing/ slipt
$\text{→}$ Last night chia QKD
$\text{14.}$ saw/ was wearing
$\text{→}$ hợp nghĩa
$\text{15.}$ was reading/ were watching/ was making
$\text{16.}$ saw/ was sitting/ reading/ called/ didn't hear
$\text{→}$ hợp nghĩa
$\text{17.}$ didn't shave/ didn't have
$\text{→}$ hợp nghĩa
$\text{18.}$ invited/ decided
$\text{→}$ Last week chia QKD
$\text{19.}$ came/ wasn't
$\text{→}$ Yesterday chia QKD
$\text{20.}$ broke/ was joining
$\text{21.}$ drove/ happened/ crashed
$\text{→}$ hợp nghĩa
