The road was covered with sand ________ the heavy sandstorm.A. because of B. because C. for d. as
I hate people ______ talk much but do little.
—Could we go and watch the football game? —No, ______ you have the tickets.
—Can I go to the park, Mum? —Certainly. But you ______ be back by six o’clock.
—I’m leaving now. —______ you turn off the lights and the computer.
The population problem may be ______ one of the world today.