【2015·北京】He is a shy man,___he is not afraid of anything or anyone.
—Do you like to buy the product an advertisement ______ on TV? —Not really.I think it's better to look before we leap.
______ twice a year,whether it is a car or a truck,is the rule that every driver must obey in this city.
—Please ______ us in the discussion. —I'd like to,but I'm ______busy at the moment.
—Johnson,come and look at the sea!It's beautiful,isn't it? —Absolutely!If only I ______here by the sea.
It is you as well as your wife that ______ your son's bad performance at school.