In our class there are 50 students，half _________ wear glasses．
A． in whom B． in them
C． of whom D． of them
Passengers are permitted ________ only one piece of hand luggage onto the plane．
A． to carry B． carrying
C． to be carried D． being carried
— Dear，the skirt I received today is not the same as is shown online．
— _________? But I promise you that we’ll 1ook into it right away．
A． Who says B． How come
C． What for D． Why worry
She has received all offer from Berkeley，but I don’t know _____ she will accept it or not．
A． Where B． whether
C． what D． which
Lucy pretended to be cheerful，_______ nothing about the argument．
A． says B． said C． to say D． saying
I made a promise to myself _______ this year，my final year in high school，would be different．
A． whether B． what
C． how D． that
