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
What are you doing out of bed, Tom? You are___________ to be asleep.
#67944
A
supposed
B
known
C
thought
D
considered
—This morning your mobile phone was always busy. I couldn’t ________ to you until several attempts.—Oh, I’m sorry. I was discussing the price of our products with a client over the phone.
#71431
A
get over
B
get through
C
get across
D
get on
When it ______ research into heart disease and its effects on the body, we do not have adequate substitutes for the use of animals.
#71865
A
refers to
B
related to
C
comes to
D
talks to