The robot needs _______ once a month. And we will check it for you for free.
| A．to check | B．checked |
| C．checking | D．to checking |
–---I wonder __________.–--Zebras.
| A．what do they call these animals | B．how they call these animals |
| C．what they call these animals | D．how do they call these animals |
— I’m going to take my driving test tomorrow.
— _______!
| A．Good luck | B．Cheers | C．Come on | D．Congratulations |
He _______ to school by bus every day.
| A．going | B．go | C．goes | D．to go |
There ________ a ruler and two pens on the desk/
| A．are | B．is | C．be | D．am |
________ your father a teacher?
| A．Is | B．Do | C．Can | D．Are |