Some plants are vey ____ to light; they prefer the shade.
| A．sensible | B．available |
| C．adjustable | D．sensitive |
— Who are you waiting for here?
— The postman ______.
| A．send me the parcel | B．will send me the parcel |
| C．sending me the parcel | D．has sent me the parcel |
At present, we have come to sense that creativity is______ it takes to keep a nation highly competitive.
| A．why | B．what | C．how | D．That |
Close the door of fear behind you, and you ______ the door of faith open before you.
| A．will see | B．have seen |
| C．are seeing | D．Saw |
Regular reflecting is______ good habit. If so, you will make ______ great progress in your study.
| A．/; a | B．a; a | C．the; a | D．a; / |
The telephone _____ three times in the last hour, and each time it _____ for my sister．
| A．had rung; was | B．has rung; was |
| C．rang; has been | D．has been ringing; is |