— Air quality in our city is becoming worse and worse.
—Yes. These days' PM2.5 readings are frightening. We must do something to ______air pollution.
| A．reduce | B．remove | C．collect | D．gather |
—Study hard, ______ you won’t pass the exam. —I see, Mum.
A. or B. and C. but
—Do you know Meimei? —Yes, she is from a university and she is ______ honest girl.
A. a B. an C. /
—When were you born? —I was born ______ November 6th, 1996.
A. in B. on C. at
Tom ________ a letter from Terry for a long time.
| A．didn’t receive | B．hasn’t got | C．didn’t have | D．hasn’t heard |
I thinknecessary to do some running in the morning.
| A．it | B．that | C．this | D．one |