The policeman, for his bravery, is going to give us a speech tomorrow.
A．to know B．known C．having known D．knowing
______ you work hard, you’ll succeed some day.
A．As long as B．As soon as C．As far as D．As well as
The weather turned out to be fine yesterday. I the trouble to carry my umbrella.
A．needn’t take B．couldn’t take
C．needn’t have taken D．couldn’t have taken
It was on a lonely island he was found alive after the accident.
A．where B．which C．what D．that
______ an accurate map, you might not get lost in the forest.
A．Use B．Used C．Using D．To use
The teacher explained a second time, the students should have difficulty in doing the experiment.
A．although B．in case C．so that D．but
