—This history book is of great value. —Exactly. However, can be enjoyed from it you have a deep understanding of it.
______ regular exercise is very important, it’s not a good idea to exercise too close to bedtime.
It was a very long day for Jack. He didn’t get home from school ______ six o’clock.
Sorry, Madam. You’d better come tomorrow because it’s ________ the visiting hours.
—What’s the low-carbon(低碳的) lifestyle like? —Save energy, and produce carbon.
---What about these two coats, madam? ---_______ of them fits me. Could you show me ______ one?