If she __ (know) about the deadline earlier, she would have submitted the paper on time.
had known
The book, which __ (write) by a Nobel Prize winner, is required reading for our course.
was written
The committee decided that the proposal __ (revise) before being approved.
should be revised
If I were you, I __ (consider) taking an advanced research course.
would consider
While I __ (write) my thesis, my friends were discussing their projects.
was writing
No sooner __ (the presentation / begin) than the projector stopped working.
had the presentation begun
By the end of this semester, we __ (complete) all our coursework.
will have completed
The experiment results __ (publish) in a well-known scientific journal last year.
were published
The results suggest that the hypothesis __ (need) further testing before it can be confirmed.
needs
Had I __ (know) about the extra credit, I would have attended the lecture.
known
The professor asked whether anyone __ (have) a question before he moved on.
had
She is the only student in our class __ (receive) a full scholarship.
to receive
If he __ (not miss) the bus, he would have arrived on time for the lecture.
had not missed