【題目】Exactly______ the potato was introduced into Europe is uncertain, but it was probably around 1565.

A. whether B. why

C. when D. how

【答案】C

【解析】

試題分析:考查主語從句的連接詞。句意:準(zhǔn)確的說,土豆是什么時(shí)候被傳到歐洲的還不確定,但是可能在1565年左右。此處when引導(dǎo)主語從句并在從句中作主語。

練習(xí)冊系列答案
相關(guān)習(xí)題

科目:高中英語 來源: 題型:

【題目】聽第8段材料,回答小題。

1When will the man see Dr. Wang?

A. At 10:00 am. B. At 2:00 pm. C. At 8:00 pm.

2What is the man’s telephone number?

A. 785-2440. B. 555-9117 C. 524-1960.

3Who is the man speaking to?

A. A doctor. B. A customer. C. A nurse.

查看答案和解析>>

科目:高中英語 來源: 題型:

【題目】Schools are expected to     students well and tell them what is right or wrong.

A. manage B. control

C. conduct D. drive

查看答案和解析>>

科目:高中英語 來源: 題型:

【題目】Among the many dangers_-- sailors have to face, probably the greatest of all is fog.

A. which B. what

C. where D. when

查看答案和解析>>

科目:高中英語 來源: 題型:

【題目】Which place are the speakers trying to find?

A. A hotel. B. A bank. C. A restaurant.

查看答案和解析>>

科目:高中英語 來源: 題型:

【題目】—Why did Peter look upset?
—His boss asked him to leave.________,he was fired.
A.By the way
B.By accident
C.In all
D.In other words

查看答案和解析>>

科目:高中英語 來源: 題型:

【題目】I truly believe ______beauty comes from within.

A. that B. where

C. what D. why

查看答案和解析>>

科目:高中英語 來源: 題型:

【題目】The information about the disease on the Internet is not as accurate as________obtained from the doctors.
A.one
B.it
C.that
D.this

查看答案和解析>>

科目:高中英語 來源: 題型:

【題目】Not until I came home last night ________ to bed.

A. Mum did go B. did Mum go

C. went Mum D. Mum went

查看答案和解析>>

同步練習(xí)冊答案