America will never again have as a nation the spirit of adventure as it ______ before the West was settled.
#83631
A
has
B
did
C
was
D
would
推荐题目
When he saw we were upset, he began to ____ us for hours with his stories and jokes.
#72415
A
encourage
B
educate
C
entertain
D
astonish
Although the entrance to the cave was very narrow, those visitors managed to________through it.
#66269
A
press
B
squeeze
C
break
D
cut
The Governor demanded that all the proposals _______ on May 1st.
#75536
A
must be submitted
B
be submitted
C
submitted
D
were submitted
Many pregnant women have bought this kind of clothes to ________ radiation.
#70794
A
block
B
protect
C
distinguish
D
guarantee