While building a tunnel through the mountain, ________.
A: an underground lake was discovered
B: there was an underground lake discovered
C: a lake was discovered underground
D: the workers discovered an underground lake
A: an underground lake was discovered
B: there was an underground lake discovered
C: a lake was discovered underground
D: the workers discovered an underground lake
举一反三
- While ______ a tunnel through the mountain, the workers discovered an underground lake. A: built B: to built C: being built D: building
- “How was ______ they discovered the entrance to the underground palace?”“Totally by chance.” A: it that B: he that C: it when D: he which
- 选择正确的答案。“How was ____ they discovered the entrance to the underground palace?”“Totally by chance.” A: it that B: he that C: it when D: he which
- 3. Xiao Li hasn't made up her mind yet, and Bob suggests they go to the lake area by ________. A: bus B: bike C: car D: by underground
- Which lake below is not freshwater lake A: Dongting Lake B: Qinghai Lake C: Hongze Lake D: Poyang Lake