【6-7】
         The bureau previously forecast that the cold air mass would not arrive until tomorrow. Except for mountainous areas in northern Taiwan and the east coast, where a higher chance of showers is forecast, cloudy to sunny skies are expected for the rest of the nation from today to Sunday.
         Temperatures are to dip low in the early morning and late at night, the bureau said, adding that Yilan and areas north of Tainan would see the mercury slide to between 11°C and 13°C. Certain regions could experience even lower temperatures due to the radiative cooling effect, it added. Temperatures in Kaohsiung, Pingtung, Hualien and Taitung could drop to 14°C to 15°C, it said.
        Daytime temperatures in northern Taiwan, Yilan and Hualien could reach close to 20°C, while people in Taitung and the central and southern regions could see high temperatures of 22°C to 24°C. The cold air mass is expected to weaken Next Monday and Tuesday, the bureau said, adding that sunny to cloudy skies are forecast for most of the nation as daytime temperatures gradually climb.
* forecast預報 mercury 溫度計 region地區 radiative cooling輻射冷卻
【題組】6. Today is January 11th. According to the weather forecast, when will the cold air mass arrive?
(A) January 11th
(B) January 12th
(C) January 13th
(D) January 14th