1.The room was too hot. I tried________ the window, but it didn’t help.
opening
to open
having opened.
2. I don’t think that children are used to________ early.
a)getting up
b)get up
c)having got up
3. They hate_______ on long walks.
a)getting
b)to get
c)get
4. “Can I give you a lift?” “No thanks. I’d rather______”.
a)to walk
b)walk
c)walking
5. I am looking forward to_____ my holiday/
a)have
b)had
c)having
6. He is keen on_____ fit.
a)to keep
b)keeping
c)keep