No one has yet succeeded in explaining the()of how life began.
A.problem
B.Cause
C.puzzle
D.logic
A.problem
B.Cause
C.puzzle
D.logic
第1题
Has he been ______ of his father's death yet?
A.said
B.declared
C.mentioned
D.informed
第2题
A.organized
B.completed
C.determined
D.described
第3题
A.was
B.had been
C.is
D.has been
第4题
The author is all the following EXCEPT ______.
A.a business woman
B.a full-time parent
C.a sufferer of skin cancer
D.a swim wear model
第5题
----She has two best friends. ----__of them is in the country.
A.All
B.Both
C.No one
D.Neither
第6题
A.works,has
B.work,have
C.works,have
D.work,has
第8题
A.hobbies
B.proposals
C.customs
D.adventures
第9题
B.who are going
C.who have been going
D.who has been going
第10题
What is considered as a measure of how much one has remembered?
A.The length of the list.
B.The type of the items.
C.The time difference of relearning.
D.The time difference of brain working.
第11题
He______that he has got one of the two earliest British stamps but nobody believes him.
A.acclaims
B.claims
C.exclaims
D.proclaims