Read this sentence. The writer had been invited was unable to attend.

Which relative pronoun is correct?
A. that
B. who
C. which
D. whom

Determine the meaning of the word *propel* using the context clues in the sentence. wind power is the ability to capture the wind in a way to *propel* the blades of wind turbines. a) to move slowly b) to urge onward c) to stop from moving d) to drive, or cause to move, forward

Read the excerpt. “this is a train-servicing station and we have to wait for a train.” he shakes his head. i smile. “it’d be nice if we could get one.” lauren mizock has revised her draft of “train tracks” to convey plot events using

One of the author’s purposes in the code book is to explain different types of codebreaking to his readers. which line best demonstrates this purpose? a theoretical breakthrough would be a fundamentally new way of finding alice's private key mathematicians have been studying factoring for centuries, and modern factoring techniques are not significantly better than ancient techniques a more recent development is the so-called tempest attack, which aims to detect the electromagnetic signals emitted . . in a computer's display unit if scientists could build a quantum computer, it would be able to perform calculations with . . enormous speed