Last week, two engineers _______to help solve the technical problems.
A: have sent
B: were sent
C: sent
D: had sent
A: have sent
B: were sent
C: sent
D: had sent
举一反三
- Last week two engineers ______ to help solve the technical problems of the project.
- An expert, together with some assistants, ________ to help in this work last week. A: sent B: was sending C: was sent D: were sent
- If he _______ in better health, he ________ abroad to study. ( ) A: is…had been sent B: were, could be sent C: had been … would be sent D: had been, would have been sent
- Imagine that you ______ onto another planet. A: send B: were sent C: sent D: had been sent
- A scientist, together with his assistants, ________to help in this work. A: send B: sends C: was sent D: were sent