The tail of the whale （） their boat and they all fell into water.

单项选择题Theygottheirjust（）whentheschemewasfinallyuncovered.

A. desert   
B. dessert   
C. deserts   
D. desserts

单项选择题Theproblemofpovertydidn’t（）itselfuntiltheearthquake.

A. manifest   
B. demonstrate 
C. emerge   
D. exhibit