When they went to the theatre, the play ______ for five minutes.
A.had begun | B.has begun | C.had been on | D.was on |
The dull wetland _______ the moment the first ray of sunlight shines on it. Thousands of creatures living in it wake up and begin their life of a new day.
A.stays alive | B.begins to live | C.makes a living | D.comes to life |
Experts say walking is one of the best ways for a person to _______ healthy.
A.handle | B.stay | C.maintain | D.reserve |
_______ unexpected heavy rain usually causes _______ great change.
A.The; the | B.An; 不填 | C.An; the | D.The; a |
---It’s getting late. I am afraid I must be off now.
---_______!
A.Go slowly | B.So long | C.No problem | D.All right |
Many British people have noticed that butterflies _______ from its natural habitats during the past several years.
A.are disappearing | B.have been disappeared |
C.have been disappearing | D.will have disappeared |