$1.$ This supermarkets are less expensive than the one across this street.
$2.$ The English teacher have taught at our school for three years.
$3.$ My doctor said to me that I should not eat in front of the television.
$4.$ If you study harder, you will pass the exam.
$5.$ Its suburban areas are not as noisy as Ha Noi urban districts.
$6.$ How about going to uncle Huan's farm this weekend?
$7.$ Sarah has difficulty in learning to read Japanese.
$8.$ The book was too complicating to understand.
$9.$ Sandy studied more diligently than she does now.
$10.$ The first books were printed by The Chinese more than a thousand years ago.