You shouldn’t have the machines ______ all the while. You ought to have them ______ now and then.
The new stadium being built for the next Asian Games will be __________ the present one.
Next to biology, I like physics _______.
Anyone, whether he is an official or a bus driver, should be _______ respected.
You’d better write down the phone number of that restaurant for future __________.
The fact that so many people still smoke in public places ______ we may need a nationwide campaign to raise awareness of the risks of smoking.