John had a short walk after lunch,_______?
| A．did he? | B．didn’t he? |
| C．had he? | D．hadn’t he? |
As we all know, the number of Tibetan antelopes(藏羚羊) ________ becoming ___________.
| A．is; less and less | B．are; less and less |
| C．is; smaller and smaller | D．are; smaller and smaller |
He didn’t listen to the teacher carefully, __________, he couldn’t answer the questions.
| A．for example | B．even though | C．as a result | D．as usual |
All the _________ things need air and water. Without air or water, nothing can stay _______.
| A．living; living | B．living; alive | C．alive; alive | D．alive; living |
Linda_____ come to meet me at the station, but I’m not sure.
| A．must | B．need | C．may | D．should |
Thanks for ______me to your birthday party.
| A．invite | B．invitation | C．inviting | D．ask |