Have you found my backpack yet?
I think she will come back in three days ,won't she?
My grandfather enjoys reading newsapers in the morning.
Have you invited your uncle to come to your birthday party?
The plane took off a little late last Friday.
翻译：
我宁愿跑步也不骑自行车.
I prefer running___to _riding __.
=I prefer _to_ _run_ rather than _ride_.
=I would rather _run__ than _ride__.
买自行车花了我300元.
The bike _cost__ me 300yuan yesterday.
I _paid__300yuan _for__the bike.
It _took__ _me__300yuan _to__ _buy__ the bike.
I_spent__300yuan _on the bike.
I_spent__300yuan _buying___the bike.