$\text {I.}$
$\text {1. Senseless}$
$\text {2. Attractively}$
$\text {3. Instructor}$
$\text {4. Occurred}$
$\text {II.}$
$\text {1.→This is the most difficult question Mai has ever had}$
$\text {2.→It was such a cold night that we all stayed at home}$
$\text {3.→Nam suggested that Minh should watch English TV}$
$\text {programmes to improve his listening skill}$
$\text {4.→If it weren't raining, we could have lunch in the garden}$
$\text {Chúc bạn học tốt~}$
$\text {@lamtung2}$