It's common knowledge that black tea ______ in China more than 600 years ago.
A: is invented
B: was invented
C: invents
D: invented
A: is invented
B: was invented
C: invents
D: invented
举一反三
- It is common knowledge that black tea in China more than 600 years ago. A: is invented B: was invented C: invents D: invented
- 12、It’s common knowledge that black tea _____ in China more than 600 years ago.A、 is invented B、 was invented C、 invents D、 invented A: A B: B C: C D: D
- An American_______the bicycle. A: is invented B: invented C: invents
- 中国大学MOOC: Bi Sheng invented movable type printing till more than 900 years ago.
- ---Football______by the British at the beginning of last century. ---That’s probably why football is one of________popular games in England. A: was invented, the most B: invented, more C: was invented, more D: invented, the most