___________it in the flesh, I would never have known the drought in southwest China is so serious and people are suffering so much.
Criticism and self-criticism is necessary _____ it helps us to correct our mistakes.
_____ or not we had a baby, we couldn’t survive only on my salary.
_____ you are familiar with the author’s ideas, try reading all the sections as quickly as you possibly can.
_____ he works hard, I don’t mind when he finishes the experiment.
Antarctic _____ we know very little is covered with thick ice all the year round.