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【单选题】
The cost of his hotel stays ______ paid by himself.
A.
having had
B.
had
C.
was
D.
were
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参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】Not knowing her name, ______.
A.
she was difficult to introduce
B.
I was difficult to introduce her
C.
I find it difficult to introduce her
D.
she cannot be introduced easily
【单选题】Choose the correct academic word to replace the underlined words from the four choices: Data are often controlled to harmonize with the results of the experience.
A.
administered, reconcile
B.
manipulated, interconnect
C.
administered, interconnect
D.
manipulated, reconcile
【单选题】Born in Russia, he ______.
A.
he is now a teacher
B.
he likes painting
C.
became a famous musician
D.
he speaks fluent Russian
【单选题】Choose the correct academic word to replace the underlined words from the four choices: Correct citation of outside sources is required as a condition for academic writing.
A.
external, standpoint
B.
implicit, prerequisite
C.
external, prerequisite
D.
implicit, standpoint