Complete the following sentences. Use the appropiate form of the word in brackets.

a. Their bed______(colllapse) in the middle of the night when they_______(sleep) in it. b.They________(can/not) use the toilet because is was leaking.

c. I_______(not/use to) complain when I was younger, but I do now.



Their bed had collapsed in the middle of the night when they were sleeping in it They couldn't use the toilet because it was leaking Didn't use to