How long may I the story books?

Where is your mother?— She has ______ to Sichuan on business. She has ______ there four times recently.

I don’t believe ___________ a little cat can eat ___________ much meat.

I forgot to invite Jim to the party.— The party is in the evening. You may call _______ up now.

“Have ________ try, you are so close to the answer,” the teacher said to Eric.