Learning to play basketball calls for perseverance, strength, time and skill. _____, it’s not a simple thing.
A.As a result | B.In conclusion | C.In general | D.After all |
33. Walking through the park, _____.
A.the trees look beautiful | B.he saw the beautiful trees |
C.and he saw the beautiful trees | D.the tree was seen by him |
32. ---Why on earth didn’t you answer the phone?
---I’m sorry, but the doorbell _____ too.
A.is ringing | B.was ringing | C.rang | D.was about to ring |
31. _____ our earth, otherwise it will be no longer fit for us to live on.
A.Protected | B.To protect | C.Protecting | D.Protect |
30. ---They are quiet, aren’t they?
---Yes. They are accustomed _____ at meals.
A.to talk | B.to not talk | C.to talking | D.to not talking |
29. _____ the project as planned, we’ll have to work two more hours a day.
A.Completing | B.Complete | C.Completed | D.To complete |