Ever since my brother graduated from the university, he _______ in the present company for 15 years and he is now chief engineer of the company .
| A．worked | B．has been working | C．is working | D．works |
—Who bought you the fresh flower?
—It’s from my girlfriend, if you ______ know.
| A．have to | B．must | C．will | D．might |
Every man has his faults. We should, therefore, learn to be ______ of others.
| A．ignorant | B．responsible | C．reliable | D．tolerant |
— Do you think Li Hua has passed the English examination?
— No, If so, he ______ us yesterday.
| A．would tell | B．told | C．would have told | D．had told |
Daisy ______ all the housework, she dropped herself into the sofa, sighing with relief.
| A．finished | B．had finished | C．having finished | D．finishing |
Fortunately , the adventurers brought the GPS with themselves, they might have been lost in the desert.
| A．of which | B．without which | C．in which | D．about which |