He is so busy.He cannot afford enough time with his son________he wants to.
| A．even if | B．as if | C．because | D．before |
There have been so many school bus accidents recently.________，people are concerned about the school bus safety much.
| A．As a result | B．After all |
| C．In spite of | D．Instead of |
________children get older，they become more and more interested in the things around them.
| A．While | B．When | C．As | D．With |
Someone called me up in the middle of the night, but he hung up ＿＿ I could answer the phone.
| A．as | B．since | C．until | D．before |
— Why do you look sad?
— There are so many problems _____.
| A．remaining to settle | B．remained settling |
| C．remaining to be settled | D．remained to be settled |
There’s no doubt ________ international cooperation is the key to ______ with cybercrime.(网络犯罪)
| A．whether; doing | B．that; dealing |
| C．whether; do | D．that; do |