______ label to each of the trees, with detailed introduction of their features, and visitors will know more about them and how to protect them.
A. To attach B. Attach C. Attached D. Having attached
---Who is to give us the lecture today?
---The lady _____ our headmaster into the hall.
A. follows B. following C. followed D. to be followed
Those who don't get their sufficient sleep are actually sending a(n) _____ to severe problems in their life.
A. invitation B. warning C. explanation D. solution
If we learn to accept change and appreciate what is new and different, we will be well-prepared for whatever the future may have _______.
A. in vain B. in store C. in demand D. in general
—Though it in the desert most of the year, people still live there.
—That’s the case. They say east or west home is the best.
A．hasn’t rained B． didn’t rain C．doesn’t rain D．hadn’t rained
Many experts seem to agree that _______ certain limit should set on ________ consumption of cars to ease air pollution.
A． a; the B．/; the C．the; / D．the; a
