— Mum, do you know the man ________ is sitting at the table?
— On, he's Mr. Smith.
A.who B.what C.whose D.which
My uncle works in HUAWEI. It is one of ________ smart phone makers in the world.
A.large B.larger C.largest D.the largest
A new shopping mall ________ in Changchun last year and it is famous for its beauty.
A.built B.to build C.was built D.builds
— Would you mind ________ the window? It's too hot inside.
— No, not at all.
A.open B.opening C.opens D.to open
— Do you know ________ for vacation in Paris?
— Last week, maybe on Monday morning.
A.when he leaves B.when does he leave C.when he left D.when did he leave
The school bag ________ be Lucy's, but I'm not sure about it.
A.must B.might C.would D.can't