913.I think it is necessary for my 19-year-old son to have his own mobile phone,for I sometimes want to make sure if he ____ home for dinner.
A.come
B.comes
C.has come
D.will come
914.Ladies and gentlemen, please fasten your seat belts. The plane _____.
A.takes off
B.is taking off
C.has taken off
D.took off
913.答案是D;
根据句意,应用will come表将来和意愿。
914.答案是B;
动词go,come, leave及词组take off等用现在进行时表示将要发生的动作。