They did the experiment ______ their chemistry teacher had instructed.
A: as
B: though
C: until
D: when
A: as
B: though
C: until
D: when
举一反三
- They did the experiment ____ their chemistry teacher had instructed.
- She did the experiment ______ the teacher had directed.（4.0分） A: as B: that C: what D: before
- The student did his homework ______ his professor had assigned. A: when B: as C: until D: if
- (Encourage) ____________ by his teacher, he did the experiment again.
- —________did the rainstorm come, Mr. Liu?—While we ________ a chemistry lesson yesterday afternoon. A: When; have had B: When; were having C: While; are having D: While; have