Now we could not do anything but ______ for him here.
The lawyer stood up in defence of the driver, saying that he was not the one _____.
The number of college graduates in a country _____ its cultural standard nowadays.
—Do you mind if I open the window?—_____, I feel a bit cold.
—Shall we run around the park or go for a bike ride? —______. They are both good activities.
—How did she get infected? —She ____ the viruses without any protection.