We have finished the project finally . No one can imagine the difficulty we had

题型：不详难度：来源：

We have finished the project finally . No one can imagine the difficulty we had _____the problem,

A．to solve

B．solved

C．solving

D．solve

答案

解析

略

举一反三

The boy who was caught ________ in the examination room will be punished by the teacher.

A．cheat

B．cheating

C．to cheat

D．cheated

题型：不详难度：| 查看答案

Jane is said _______ an opera singer in her youth.

A．being

B．to be

C．to have been

D．having been

题型：不详难度：| 查看答案

The famous writer’s play, ________ in one of my books, was published in 1963.

A．to mention

B．mentioned

C．to be mentioned

D．mentioning

题型：不详难度：| 查看答案

_________with so many contributions to the newspaper, he has little time to chat with friends on the net.

A．Occupied

B．Have been occupied

C．To occupy

D．Having occupied

题型：不详难度：| 查看答案

The question of whether English will continue changing in the future is easy _______.

A．answer

B．to answer

C．to be answered

D．answering

题型：不详难度：| 查看答案