Question

求助！！两道英语选择题~~

These areas rely on agriculture almost ___________, having few mineral resources and a minimum of industrial development.

 A. respectively B. relatively C. incredibly D. exclusively

________, they managed to finish the job on time.
 A. Difficult as it was  B. Difficult if it was  C. As difficult it was  D. If it was difficult

最好能够解释下道理~~！！！
还有一题
I don't think he is old ________ to do the job.
 A. sufficient B. plentiful C. enough D. adequate

解释下原因~！！

为什么不能选D呢？ adequate不是 胜任 的意思吗

Answer 1

第一题
A分别地，
B相对地，
C难以置信地
D专门地
这句话的意思是。这地方矿产极少工业不发达，相对而言就主要依靠农业了。
所以这个选 B
第二题：

选A意思是工作很难，他们还是设法按时完成了。
as有表原因表让步的意思/

第三题当然是C
我不认为以他年龄能做这个工作。

Answer 2

1.what
a
foreign
language
is是主语从句第二个is后面是表语。句子意思为：外语是什么很清楚。
2.我把what
he
was
doing
换成the
meeting你能看明白吗？Mr
smith
told
me
(why
the
meeting
)was
very
Important原句中what
he
was
doing
是宾语从句的主语。也就是说宾语从句中是由一个主语从句充当主语的。

Answer 3

D. 由于后面的原因。
A. as 引导的让步状语从句， 采用倒装结构。尽管。。。

Answer 4

D 排他的 原文意思是此地只能靠农业 只有极少量的矿藏和工业
A 倒装 没有什么好说的 句式如此

Answer 5

D. exclusively
A. Difficult as it was 我只是凭语感，看看后面的人是怎么解释的吧