After they ____ the first super computers in the 1940s, scientists and engineers began to develop ways to create networks.

第1题

汉译英：后天早上（）

A.the morning after tomorrow

B.the day after tomorrow in the morning

C.the morning after next

第2题

__________ [A] since [B] after [C] by [D] to

第3题

A．afterB．beforeC．forD．and

A.after

B.before

C.for

D.and

第4题

A． agoB． beforeC． sinceD． after

A.ago

B. before

C. since

D. after

第5题

Eric received training in computer for one year,() he found a job in a big company.()。

A.after which

B.after that

C.after it

D.after this

第6题

A．afterB．withC．beforeD．at

A.after

B.with

C.before

D.at

第7题

A) by B) after C) of D) for

A) by

B) after

C) of

D) for