The smoggy weather has made us realize ________ terrible problems we are faced with.
| A．how | B．what |
| C．that | D．which |
__________ hard, and you will succeed in time..
| A．Working | B．Work | C．Worked | D．To work |
-- Hi, Grace, you look tired.
-- I'm tired. I ____________________ on my homework all day.
| A．worked | B．had worked |
| C．have been working | D．have worked |
You should make an apology _____ your mother ______ your rudeness.
| A．to ; at | B．to; for | C．for; to | D．at; for |
Whatfun it is to walk alone withfull moon hanging in the sky.
| A．/; a | B．a; / | C．the; / | D．a ;the |
As President Xi Jinping puts____ , “the Chinese dream is, after all, the dream of all Chinese people.”
| A． it | B．that | C．/ | D．this |