1. The company is planning to ________ its operations overseas.

• a) expand
• b) expend
• c) expel
• d) explain

2. She is known for her ________ in science.

• a) expertise
• b) expertize
• c) exasperate
• d) exaggerate

3. The ________ of the situation was not lost on anyone.

• a) irony
• b) ironic
• c) iron
• d) seriousness

4. His response was both ________ and immediate.

• a) appropriate
• b) approriate
• c) appreciable
• d) approach

5. They decided to ________ the project due to lack of funds.

• a) abort
• b) abord
• c) aboard
• d) abortive