Researchers at Gasnite Company have developed an improved method of ( ) fuel industrial waste materials.
A. extraction
B. extracts
C. extracted
D. extracting
【答案】D。介宾短语的考察,介词后只能加代词或者名词、名词短语,当介词后加动词的时候,动词必须改成动名词形式。一般情况下,动名词是直接在动词后加ing。A选项extraction也是名词,但是该名词与之后的名词materials有所属关系,必须加of,所以A选项错误。故正确答案是选项D。
Today, Wichner Industries announced that it ( ) opening an office in Kuala Lumpur to coordinate its overseas.
A. been
B. is being
C. will be
D. be
【答案】C。观察选项可知考查时态,空缺处后是现在分词形式,可推知空缺处填入的应是谓语动词形式,选项AD排除;根据句意可知从句应当是将来的时态,形成shall/will be + doing结构,表述将来进行时。故正确答案是选项C。