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
