【单选题】________their son away to college, the old couple got more room in the house.
【单选题】The old couple tried to accuse their children of neglecting their ______ duties.
【简答题】紧急制动电磁阀不得电时列车将()紧急制动。
【单选题】Having a trip abroad is certainly good for the old couple, but it remains _______ whether they will enjoy it.
【简答题】The old couple decided to _________ 怎么选The old couple decided to _________ a boy and a girl though they had three of their own. A) adapt B) bring C) receive D) ado...