It is often said that __ teachers have __ very easy life.
| A．/, / | B．/, a | C．the, / | D．the, a |
Spring_______ after winter.
| A．comes | B．came | C．has come | D．had come |
—I hear some noise in the next room.
—Oh, yes. Your sister_______ there.
| A．cries | B．is crying | C．cried | D．was crying |
All the students__________ to plant trees and there’s nobody in the classroom.
| A．go | B．will go | C．have gone | D．wound go |
Stop! A little boy_________ the street.
| A．is crossing | B．crosses | C．crossed | D．has crossed |
The girl________ to milk since last winter.
| A．learns | B．learned | C．has learned | D．would learn |