3.They should clean their teeth twice a day.
IV.Reading: Choose the best answer – underline the lines that you
base on.(1 points)
What is the title of the pasasage?
Common types of calendars can be based on the Sun or on the Moon. The solar
calendar is based on the solar year. Since the solar year is 365.2422 days long, solar calendar
consist of regular years of 365days and have extra day every fourth year, or leap year, to
make up for the additional fractional amount. In a solar calendar, the waxing and warning of
the moon can take palce at various states of each month.
The lunar calendar is synchronized to the lunar month rather than the solar year. Since
the lunar month is twenty- nine and hap days long, most lunar calendars have altternating
months of twenty- nice and thirty days. A twelve – moth lunar year thus has 354days, 11
days shorter than a solar.
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