We can never expect ____ bluer sky unless we create _____less polluted world.
| A．a; a | B．a; the | C．the; a | D．the; the |
-- I am afraid I can’t help you with your project. I ________ a model these days.
-- It doesn’t matter. I will finish it by myself.
| A．make | B．will be making | C．am making | D．have made |
Is this hotel ________ you said we were to stay in your letter?
| A．in which | B．what | C．that | D．Where |
It is wise to have some money ________ for old age.
| A．put aside | B．kept up | C．given away | D．laid up |
--You can’t have the horse ________ all the way. It’s too hot.
-- Sorry, it ________ my fault. I will stop it right now.
| A．run; has been | B．to run; was |
| C．running; is | D．to be running; has been |
His casual clothes were not ______ for such a formal occasion.
| A．delicate | B．flexible |
| C．appropriate | D．especial |