138、《干校六记》的是( )所记载的被下放五七干校时的真实情景。

45、A ( ) in parentheses may be used to indicate uncertainty.

44、We can use ( ) to signal an ironical sense.

43、We can use ( ) to signal direct quotation.

42、What is a colon?

41、What is a dash?

40、Which punctuation is appropriate in the following sentence?

39、We use ( ) to separate words, phrases, and clauses in a series.

38、( ) are used to separate parts of a sentence from one another, and to mark a pause in reading.

37、We can use ( ) to replace the word “percent”.

36、( ) are used to create compounds.