【B16】A．boomsB．succeedsC．failsD．enlarges

【B16】A．courseB．trickC．velocityD．hatch

FRUSTRATE:A．abetB．preferC．enlargeD．organizeE．annul

FRUSTRATE:A．abetB．preferC．enlargeD．organizeE．annul

【B16】______A．skinB．muscleC．organD．tissue

【B16】A．oldB．originalC．familiarD．identical

【B16】A．hotelB．hospitalC．restaurantD．station