The voyages of travellers before the 17th century show that they were not ________ the sea even though they didn’t have modern navigational aids.
#26840
A
at the expense of
B
at the risk of
C
in the way of
D
at the mercy of
推荐题目
---We went to bed that evening at 10:30 . ---That’s a good habit.
#26331
A
at an end
B
as usual
C
right away
D
as a matter of fact
Our opinions on language learning differ greatly each other’s in that respect.
#27167
A
at
B
by
C
for
D
from
—I wonder what’s on television this evening. Have you got a newspaper?—Yes, ________ TV programmes are ________ the back page.
#28577
A
the; on
B
the; in
C
/ ; in
D
/ ; on
Edison had built a chemical lab of ___ when he was very young.
#28104
A
himself
B
him
C
itself
D
his own
Good friends as we are, I still find her difficult to understand ________.
#27428
A
at one time
B
at a time
C
at times
D
at the time