The student did his homework ______ his professor had assigned.
A: when
B: as
C: until
D: if
A: when
B: as
C: until
D: if
举一反三
- Not until he finished his homeworkhim to watch TV in the evening. A: did his parents allow B: his parents had allowed C: his parents allowed D: had his parents allowed
- He _____ his homework when his mother came back yesterday evening. A: was doing B: is doing C: did D: does
- What does the professor mean when he says this: A: The class is taking place in his office. B: The professor is busy doing his own work. C: The professor is able to meet with his student. D: The student should come back another tim
- How did Tina look when the author assigned the ten-point homework assignment?
- Not until he had fulfilled his mission did he realize that he was seriously ill.