Nick has problems _______ .He has a sore leg.
| A．walk | B．walked | C．walking | D．to walk |
---Have you returned the book to the library _______?
---Yes, I have _______ retuned it.
| A．yet, yet | B．already, already | C．already, yet | D．yet, already |
---Do your parents have the same hobby?
---No．My father likes playing____ football while my mother enjoys playing _____piano．
| A．／；the | B．／；／ | C．the；／ | D．the；the |
My parents are always strict________ me.
| A．with | B．in | C．on | D．for |
—Mom, my classmates invited me ________ a field trip. May I go with them? —OK.
| A．go on | B．to go on | C．go in | D．going on |
—John isn’t happy today. Let’s go and ________.
—Good idea.
| A．cheer up him | B．cheer him up | C．to cheer up him | D．cheering up |