The Cambrian _____ an important moment in the history of ...

[ Tenses ]

The Cambrian _____ an important moment in the history of life on earth and a time of radical evolutionary experimentation when many animals first _____ in the fossil record.

A. was / had appeared

B. has been / will appear

C. has been / appears

D. is / appeared

E. was / appeared

Select your answer:
A B C D E

Random Topics:

Present Simple and Continuous Present or Past Tenses Clauses and Conjunction Ed and Ing Endings Past Simple and Continuous FOR & SINCE Adverb Clause Verbs + Gerund or Infinitive IF CLAUSE Have to/Has to

Other quiz:

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Fill in the blank: She ________ (not/study) for the exam yet.

A. did not study

B. has not studied

C. hasn’t studied

D. not studying

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________Lucy prepared much for the interview, she still got cold feet when asked some questions about her personality.

A. Despite

B. Though

C. Because

D. Because of

Phrasal Verbs › View

Have you thought _____ my offer?

A. by

B. about

C. in

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It was nice of them_____ me clean my house after the party was over.

A. for help

B. help

C. for helping

D. to help