Directions:In each of the following groups of words, there are four underlined letters or ltter combinations marked A, B, C and D. Compare the underlined parts and identify the one that is different from the others in pronunciation. Mark your answer by blackening the corresponding letter on the Answer Sheet.
A、land
B、lamb
C、father
D、ladder
Reading aloud every day can be one of the most _____ways to improve your spoken English.