当你给别人指路,想告诉他向左转,你应说:A. Turn left. B. Turn right. C. Go straight.
( ) Even the top students in our class can’t work out this problem. So it _____ be very difficult.
() This machine is very easy to use.______ can learn to use it in a very short time.
( ) One of his friends ______ his daughter sometimes.
( ) The game is _____ funny that many of them like it.
( ) Are there _____ trees behind the house?