Waste paper shouldn’t everywhere. We must keep our school clean.
| A．have thrown | B．throw |
| C．be thrown | D．be throwing |
We have had several visits ______the famous nature zoo.
| A． for | B． to | C． forward | D． against |
She’ll come back in _______ hour ,
| A．a | B．an | C．the | D．/ |
- I'm going on a trip to Singapore after the exam.
- Really? _______!
| A．OK | B．It's nice of you |
| C．Congratulations | D．Have a fantastic time |
- When did your parents _______? - They _______ for 20 years.
| A．marry.; got married | B．get married; have got married: |
| C．marry; have got married | D．get married; have been married |
-_______ do I save the document on the computer?
- Please click 'save' and write a name for it.
| A．What's | B．How | C．When | D．Where |