He found_ ________very difficult ________the math problem．
| A．that, to solve | B．this, solving |
| C．it, to solve | D．it, solving |
---Mr. Green ， do you think I can get an “A” in the final exam if I start working hard now?
--Of course. ______.
| A．Better late than never |
| B．Many hands make light work |
| C．You cannot burn the candle at both sides |
| D．Actions speak louder than words |
---Do you think the question is too hard _____?
---I don’t think so. He can answer it easily.
| A．of Jim to answer | B．of Jim to answer it |
| C．for Jim to answer | D．for Jim to answer it |
Jack is always _____ to wait for a long time without getting angry.
| A．too patient | B．patient enough |
| C．enough patient | D．so patient |
---Has Mr. Smith ________ heard about the story?
---No， he hasn’t .
| A．yet | B．just | C．ever | D．once |
---I haven’t seen my grandparents for long. I’m too busy ___ them these days.
---Why not call them instead?
| A．visit | B．to visit | C．visiting | D．visits |