The voyages of travellers before the 17th century show that they were not _____ the sea even though they didn't have modern navigational aids．
#172
A
at the expense of
B
at the risk of
C
in the way of
D
at the mercy of
推荐题目
— Could you please do some shopping for me, Mary?— Sorry, I ______ my homework.
#42147
A
do
B
am doing
C
have done
D
was doing
Finally he _____ that he was not interested in our offer.
#15606
A
said it clear
B
made it clear
C
spoke it
D
declared it
My brother would like to buy a good watch but was available from that shop.
#15696
A
nothing
B
none
C
no one
D
neither