用正确的介词或副词填空：I am going to check up ___ the time of the train.
举一反三
- I’m going to check up the time of the train.
- I'm going to check up _______ the time of the train. A: on B: in C: to D: with
- I’m going to check up ( )the time of the train. A: in B: on C: at D: off
- I’m going to check up ______the time of the train. A: in B: on C: at D: out
- I’m going to check up ______the time of the train. A: on B: in C: off D: to