$1. ⇒$ This road is not used very often .
$2. ⇒$ I was not told that Ann was in the hospital .
$3. ⇒$ The museum was not visited .
$4. ⇒$ Is the problem solved $?$
$5. ⇒$ Tennis was played in the area yesterday .
$6. ⇒$ Mary was met last night .
$7. ⇒$ The meeting was cancelled .
$8. ⇒$ May tigers were seen yesterday.
$9. ⇒$ The lessons are explained by the teacher.
$@Yuu$