When the teacher came into the classroom, the students ____ in groups.
| A．work | B．have worked | C．were working | D．are working |
—_________ did your play soccer? —For three years.
| A．How often | B．How many | C．How much | D．How long |
I have a _________ sister. She is two years old.
| A．love | B．to love | C．lovely | D．loving |
She toured China __________she was fourteen.
| A．when | B．why | C．what | D．how |
Michael Jordan is an __________ basketball player.
| A．outstanding | B．good | C．great | D．large |
You are never too young _________ doing things.
| A．to starting | B．start | C．to start | D．starting |