His letter was so confusing that I could hardly make any ______ of it.
| A．explanation | B．meaning |
| C．sense | D．guess |
In a way，________ global warming is a challenge for man，so we must overcome it to build ________ fine world.
| A．the；/ | B．a；the | C．/；a | D．a；/ |
I think_____ impresses me about his painting is the colors he uses.
| A．who | B．that | C．which | D．what |
I don’t really like the author _____ I have to admit his books are very exciting.
| A．until | B．unless | C．although | D．once |
---When shall I call, in the morning or afternoon?
----_____. I’ll be in all day.
| A．Any | B．None | C．Neither | D．Either |
I am looking forward to the day _____ my daughter can read this book and know my feelings for her.
| A．as | B．why | C．when | D．where |