ⅰ.单项选择
1.—i’m trying to________on my job right now.
—ok,sorry for disturbing you.
a.concentrate b.fix
c.work d.go
《解析》 concentrate on意为“全神贯注于……”;fix后面要直接跟宾语,如:fix one’s mind on...;work on后面常接具体的工作内容;go on后面要接介词with再加名词,或直接加动词ing形式。
《答案》 a
2.i hardly________his voice on the phone since we haven’t seen each other for ten years.
a.known资源难易程度:★★★★★★★★★★★★★★★
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