________ important _________ us to eat a balanced diet.
A. It’s, for B. That’s, for C. It’s, to
—Can you remember when Mr. Green left _____ city?
—Sorry, I can’t. I only remember it was _____ Monday.
| A．the; a | B．the; the | C．a; a | D．a; / |
No one knew what because of the thick fog.
| A．he had happened | B．had happened to him |
| C．had he happened | D．has happened to him |
-------Where you ?
------I the teacher’s office.
| A．have been; have been to |
| B．have been to; have gone to |
| C．have been; have gone to |
| D．have been to; have been to |
Our teacher told us to the new words in the dictionary if we didn’t know them.
| A．look over | B．look after | C．look down | D．look up |
Millie ran back to school because she her magazine in the classroom.
| A．left | B．forgot | C．had left | D．had forgotten |