He asked whether he (have) to do the whole experiment again if he failed in a single test.
举一反三
- 4. Again as __________ in this experiment, he didn' t lose heart. A: he failed B: did he fail C: he did fail D: had he failed
- He ______ the test again, because he looks upset. A: must fail B: must have failed C: can’t fail D: can’t have failed
- He finally_______ that he failed in his experiment, and he said he won't continue.(admit)
- He was very（）(luck), and he failed again in the maths exam.
- Hard as he worked，he failed to support the whole family．