Question

---Mr Wang, I have trouble ________ the text.
---I’m sure you can, but remember ________ it at least three times.

A．to understand; reading

B．understanding; reading

C．to understand; to read

D．understanding; to read

Answer 1

D

have trouble doing sth表示做某事有难度或困难；remember to do sth表示记着去做某事。