题目内容
Sometimes, ________ we show our gratitude for a person is reflected in the kind of food we serve him or her.
| A．when | B．whether |
| C．why | D．how |
D
解析
Most volunteers are from universities, _________ it is not uncommon to see middle and primary school students too.
| A．though | B．however | C．since | D．even if |
You seem to have a readymade answer ________ I ask you a question.
| A．whenever | B．whatever |
| C．whichever | D．whoever |
We haven't settled the problem of ________ it is necessary for him to study abroad.
| A．why | B．whether |
| C．what | D．how |
China's reform and opening has been going on for ________ is like about 30 years now and it's really quite remarkable.
| A．that | B．which |
| C．what | D．it |
In the office an electrical engineer is looking through the instructions to know ________ the heat system works before the repair work.
| A．whether | B．why |
| C．how | D．that |
A small car is big enough for a family of three ________ you need more space for baggage.
| A．once | B．because | C．if | D．unless |
Besides the content of a book, ________ the editor also cares about is the number of readers.
| A．who | B．why |
| C．how | D．what |
Why not look up the new word in a dictionary _____ you don’t know it ?
| A．if | B．that | C．though | D．whether |