Landing safely in bad weather is a _______ task for any pilot, and even the smallest error can lead to a disaster.
#17896
A
tricky
B
secure
C
significant
D
easy
推荐题目
——I think the book is as interesting as it is instructive．—— It could never be____．It is well worth reading．
#18320
A
as true
B
true
C
the truest
D
truer
I need one more stamp before my collection _______.
#20728
A
has completed
B
completes
C
has been completed
D
is completed
The lady said she would buy a gift for her daughter with the .
#18749
A
20 dollars remained
B
left 20 dollars
C
20 dollars leaving
D
remaining 20 dollars
After two years’ research, we now have a ________ better understanding of the disease.
#20774
A
very
B
far
C
fairly
D
quite
Wouldn’t it be ____for you to pick me up at five o’clock and take me to my company？
#20465
A
free
B
vacant
C
handy
D
convenient