It has always been the _____ of our firm to encourage workers to take part in social activities.
| A．plan | B．campaign | C．procedure | D．policy |
He has five___________ , and they are all doctors working in the same hospital .
| A．sons- in-laws | B．son-in-laws | C．sons-in-law | D．son in laws |
I’ll go to fight in the battle __________ you go or not .
| A．no matter | B．whether | C．even though | D．if |
There are countless ________ leaves as if they were a red blanket_______ the ground.
| A．fallen; covering | B．falling; covered |
| C．fallen; covered | D．falling ; covering |
he has been working so hard . __________ he could answer such a difficult question.
| A．No wander | B．No wonder | C．why | D．because |
Holmes walked swiftly into the garden , ______________ by Doctor Watson.
| A．following | B．followed | C．was followed | D．to be followed |