1 . The COVID-19 outbreak is spreading worldwide, and bringing ________ to global public health security.

A．challenge

B．chance

C．exchange

D．change

2 . —What’s the key to be a good speaker?
—A good speaker should know how to ________ listeners.

A．punish

B．produce

C．exchange

D．excite

3 . Linda, what _________ will you need for your speech?

A．exhibition

B．experiment

C．exchange

D．equipment

4 . Which of the following words has different stress with others?

A．Lyrics

B．Exchange

C．Product

5 . After seeing the show, we were given several minutes to ________ ideas.(change)

6 . I think her concert has ______________her fans. It isn't as good as they have expected.

A．communicated

B．disappointed

C．examined

D．exchanged

7 . — Ben, how could you read my diary without ________?
— I’m really sorry. I promise I won’t do that again.

A．exchange

B．permission

C．introduction

8 . I’m a Chinese student. But now I am studying in the USA, so I’m a(n) _______ student.

A．new

B．old

C．exchange

D．American

9 . —I think it’s hard for us to realize our dreams.
—Yes, but we will achieve them without doubt if we ________ them.

A．exchange	B．look up to
C．stick to	D．show up