第一部分 基础知识单项选择(共20小题；每小题1.5分，满分30分)
1.It is well-known that ____ year 2020 saw many developments in ____ science and technology, with those in the field of space science being particularly notable.
A. /; / B. /; the C. the; the D.the; /
2..My telephone is out of order. Can you tell me the ____ news about the COVID-19 pandemic?
A. lately B. latest C. later D. latter
3.He pretended when his mother stepped into his room.
A. to study B. studying C. to be studying D. to have studied
4. _______the answer several times , he still couldn’t answer the question.
A. Having told B. Having been told C. Being told D. Telling
5.______ they have won the game made us excited.
A. That B. / C. What D. Which
