[单项选择]How do you understand the“first half”of a month according to the terms of shipment in the contracts( )
A. the 1^st to the 10^th
B. the 1^st to the 15^th
C. the 11^th to the 20^th
D. the 21^st to the last day of the month

{{B}}Education out of school{{/B}}
Ⅰ. The origin of "Youth Hostel":
A German schoolmaster started the idea of "Youth Hostel" in 1907. - - turned
his little schoolhouse into a (1)_______ for young people’s summer holidays. (1) ______
Ⅱ. The current use of "Youth Hostel":
A. Admission and price: show their (2)_______ in a hostel organization; use (2) ______
the facilities for a (3)_______ price. (3) ______
B. "Hostelling":
—The young from different countries meet together in Youth Hostels.
—They learn a lot from those of other countries.
—"Hostelling’ has become of a form of (4)_______ education ns useful ns (4) ______
classes in school.
—Today, hostels are considered important for (5)_______ -the young with (5) ______
a fir