______do you like pandas — ______they are cute.

Would it be ____for you to pick me up at four o’clock and take me to the airport?

________ excited Geoff Marcy most was whether there were planets in other solar system where life might exist

He finds it hard to keep _____ with thechange of society if he stops learning．

I can’t imagine why he didn’t stick to his promise____he would do his best to buy me a new bike.