—Must I hand it in today？
—No，you ________．You can do it tomorrow．
A．mustn’t
B．can’t
C．needn’t
— We _____ three hours finishing our homework yesterday.
| A．spent | B．paid | C．cost | D．took |
— If we want to be a _____ visitor in a foreign country, it is important to know how to ask for help ________.
| A．politely, polite | B．polite, politely |
| C．politely, politely | D．polite, polite |
— Your bedroom is so tidy!
— Thanks. I like living somewhere clean. My bedroom ______ by me every day.
| A．cleans | B．was cleaned |
| C．is cleaned | D．is cleaning |
— The Halloween is very ______. We are all ______ in it.
| A．interesting, interesting | B．interested, interested |
| C．interesting, interested | D．interested, interesting |
— Could you please tell me ______ just now?
— Sorry, I was busy with my work.
| A．what the teacher says | B．what does the teacher say |
| C．what the teacher said | D．what did the teacher say |