【題目】Scientists can't explain (appear) of dinosaurs correctly. They are trying their best to find the reason.

【答案】disappearance
【解析】：科學(xué)家不能正確解釋恐龍的消失, 他們正在盡自己最大的努力找到這個(gè)原因。此處explain是及物動(dòng)詞，后跟名詞作賓語(yǔ)，所以用 disappearance.

練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目：初中英語(yǔ) 來(lái)源： 題型：

【題目】My watch is broken. I want to know how to make it ________.
A.work
B.to work
C.walking
D.to walk

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源： 題型：

【題目】Attention, please! Without permission, children are not allowed alone here.

A. to swim

B. swimming

C. swim

D. swam

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源： 題型：

【題目】-- Would you like to go shopping with me?
-- .
A.Yes, I like
B.Sorry, I wouldn't like
C.Yes, I'd like to
D.Yes, I'd like

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源： 題型：

【題目】 exciting boat race it was! Many people watch it.

A. What a B. What an C. How D. How a

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源： 題型：

【題目】Everyone in our class should try his or her best ________for the exam.

A. to study B. study

C. studying D. studied

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源： 題型：

【題目】Washington D.C., the capital of the United States, is one of ______ cities in the world.
A.big
B.bigger
C.much bigger
D.the biggest

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源： 題型：

【題目】Three and five is ______.

A. six B. seven C. eight

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源： 題型：

【題目】We planed (have) some tea, but we decided (stay) for two hours.

查看答案和解析>>

同步練習(xí)冊(cè)答案