—What time will we go there?—I’m not sure.It the matter I have been getting along.
______ the cold, thin air and low oxygen levels also can cause mountain sickness.
China is a wonderful land ______ minerals.
_______, when I went to town to see my sick teacher, he said to me, “I’ll come back to school again _______.”
Sweet memories ______ as I looked at the pictures _____were taken at the beach last summer.
Dr Yuan makes______ possible______ one-third more of the crop in the same fields.