____ hands and knees Helen Thayer got the tent up.
#27651
A
In
B
At
C
With
D
On
推荐题目
I was so tired that __ I closed my eyes, 1 fell asleep．
#27231
A
the moment
B
the moment, when
C
for the moment
D
at the moment when
______ having a busy schedule, Ariel Lin attended an environmental art exhibition.
#25885
A
Despite of
B
In spite of
C
Thanks to
D
Even though
The discovery was made_______, which we hadn’t expected .
#26723
A
on purpose
B
at present
C
in advance
D
by accident
The company has launched several types of cars this year, and one_______ appeals to the young.
#25561
A
in return
B
in particular
C
in addition
D
in turn
_____ three influenza type A virus subtypes（子类型） have been found in pigs．
#27191
A
By far
B
As far as
C
So far
D
Till far