There was an organ so large that it had to have seventy men pump the air into the pipe. What a tremendous sound that organ ________ ?
A: must have been
B: have done
C: makes
D: was made
A: must have been
B: have done
C: makes
D: was made
举一反三
- I didn' t hear the sound, so I ______ asleep. A: must be B: must have been C: should be D: should have been
- 17 Mary ________ his homework late last night, so she felt sleepy in class this morning. A: must do B: must be doing C: must have been doing D: must have been done
- which of the following statements is TRUE A: vagina is the sexual intercourse organ for women B: vagina is the erectile organ for women C: men have erectile organ while women do notchunv D: hymen is the sexual intercourse organ for women
- He looks tired. He ______ a sleepless night. A: must have been B: must have had C: must be D: must have
- “They have done a good job.” “.” A: So they have done B: So they have C: So have they D: So is it