I am in doubt ______ I should buy it or not.
A: if
B: what
C: whether
D: which
A: if
B: what
C: whether
D: which
举一反三
- I am not sure ______ he likes the black sweater or not. A: that B: whether C: which D: what
- I am not sure whether the news _____ he failed in the exam depressed him or not. A: that B: which C: what D: whose
- I doubt ____ we will pass the exam. A: whether B: that C: what D: which
- I don’’t doubt ______ he will come on time. A: whether B: which C: what D: that
- I ___ five minutes to decide whether I should go or not.