Things are ________ on Mars ________ on Earth because of the different gravity.
-How tired we are!-Yes. ______we have math tests, _______we have physics tests. So many tests.
-It’s said that English ________all over China. -Not really. Only some can speak __________ English.
Don’t forget to lock the door if you are the last person _________.
-Tomorrow is my birthday, would you like to come?-______.
I have _______used to ________with chopsticks for almost one year.