A、switch off the tap when brushing teeth
B、flush the toilet with grey water
C、use cloth bag
D、promote the idea of environmental protection
A、Which
B、where
C、what
D、in which
A、whom I spoke
B、to who spoke
C、I spoke to
D、that I spoke
A、which they stayed
B、at that they stayed
C、where they stayed at
D、where they stayed
A、which
B、that
C、when
D、on which
A、I am writing to complain about the poor service in your restaurant.
B、I am writing to inform you that I am not satisfied with the shoes bought on your website.
C、Allow me to convey my congratulations on your promotion to Minister of Trade.
D、