When you to meet at 8 o’clock. You should be there on time.

We can’t predict the climate well enough to know what _____. [ ]

RememberthatwhereandwhentwodifferentEnglishquestionwords___________.—Isee,butcanyoutellushowtousethem,sir?

More and more trees should be planted in spring to________sandstorms happening frequently. [ ]

What do you think of Jeremy Shu-How Lin’s overnight success? — I think it is not good luck but hard work _____ has made him what he is today. [ ]