Tu Youyou is a Chinese scientist. She medicine since 1951.
A．will study B．has studied
C．studies D．is studying
Liu Yang is excited. He to Tian’anmen Square tomorrow morning.
A．goes B．will go C．went D．has gone
— Must I wash my skirt tonight?
— No, you . You can wash it tomorrow.
A．can’t B．shouldn’t C．needn’t D．mustn’t
Billy is than his brother.
A．tall B．taller C．tallest D．the tallest
— picture do you like, this one or that one?
— I like that one.
A．Who B．What C．Which D．Whom
Jim wanted to go to the concert, he didn’t get a ticket.
A． so B．and C．or D．but
