Nested punctuation and the main clause — Topic practice
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Question 1
Guide question RW-02.01
The long footbridge—a route used by walkers throughout the ______ the two neighborhoods.
Which completion preserves the simple insertion and main clause?
Why this answer
A: The comma does not close the single dash-marked insertion.
B — correct: The dash closes the supplement, leaving The long footbridge connects the two neighborhoods.
C: The extra comma separates the subject from connects after the supplement closes.
D: A semicolon cannot close this insertion or follow the incomplete subject phrase.
The ______ into three areas—printing, binding, and packing—provides paid training.
Which completion preserves the underlying main clause?
Why this answer
A: Is divided and provides would be unconnected finite predicates.
B: Has been divided creates the same unconnected-predicate problem.
C: Is makes the description finite; the comma after is also splits the verb phrase.
D — correct: Read as The workshop, divided into three areas—printing, binding, and packing—provides paid training. Divided introduces the outer supplement; the dash introduces its inner list. The core is The workshop provides paid training.
The schedule includes a morning session, which is held outdoors; an afternoon session, which uses the studio; and an evening session, which is recorded. ______
Which analysis correctly explains the punctuation?
Why this answer
A: The first semicolon is followed by an afternoon session, a noun phrase rather than an independent clause.
B: Each which-clause modifies its own session; there is no single spanning supplement.
C — correct: The semicolons mark the three large list items; the commas introduce smaller relative-clause supplements within them.
D: Each finite verb in a which-clause belongs to that subordinate clause and is licensed. The main verb is includes.