Jenny, do you always your mother?[ ]
A. helps
B. helping
C. help
答案：C
The weather ____ cold and snowy.
[ ]
A. am
B. are
C. is
发包人逾期支付设计费应承担应支付金额( )的逾期违约金。
A．2%
B．0.2%
C．5%
D．0.5%
