I didn't have much time, but I ... visit a lot of places of interest in London. must / can / [remaining options are cut off]

can is the only visible option that fits the meaning: “I didn’t have much time, but I can visit...” However, the sentence is likely intended to use a past modal such as was able to, which is not visible among the options.

The remaining answer choices are cut off in the photograph, so the intended answer cannot be determined with certainty.