—Please let me know where David is. I couldn’t find him anywhere.—Well, he _____have gone far—his coat’s still here.
More attention must be paid the endangered animals..
She doesn’t like the way _______ you speak to her.
The young man helped the company recover, so his boss gave him an apartment _________.
__________, he caught up with others.
This book _________12 units, _________ the unit of Music.