. _________in charge of the shopping center has upset him for quite some time.
Frank made a good_______ _on the first interview, so the manager gave him the job.
The doctors has_________ a new idea on the treatment, which is well thought of by his companions.
-----Hi, Peter. Long time no see.-----Oh, it’s you, Jack. I’m sorry I didn’t ________you at first.
________its low cost, the appeal of iron as a building material lies in its strength, its resistance to fire, and its potential to span long distances.
When you rewrite the paragraph, I advise you to______ the last sentence as it is rather misleading.