The successful spread of a virus depends on how long it can（74)unnoticed, before its prese

A、as successful a manager as

B、as a successful manager

C、as a manager successful as

D、as successful manager as

Ants are one of nature’s most successful insects.

A.Good

B.Acceptable

C.Weak

D.Vague

Contrary to expectations, the film was successful _______ when it was released.

A. currently

B. fast

C. readily

D. instantly

Successful entrepreneurship depends on many factors. Of primary importance is money. ()

For a successful business, friendly and __________ staff are essential

A.sufficient

B.effective

C.efficient

D.respective