Many of friends British people make at school remain friends for life, so it is true that schooldays are “the best of life”.
| A．the；不填 | B．the; the | C．不填; the | D．不填；不填 |
It never _____ humans until the mid1990s that some animals can be cloned.
| A．occur | B．is occurred | C．occurred to | D．occurred |
If you _____ his wife’s income____ his own，the total of their income _____ 3000 yuan.
| A．add; to; will add up to | B．add; to; adds to |
| C．add up; to; adds up to | D．will add; for; adds up |
Is it a wonder that ____little cells can store much energy?
| A．so; so | B．so; such | C．such; such | D．such; so |
As a senior high student, you should your energy on how to master the skills of learning.
| A．impress | B．spend | C．concentrate | D．use |
— May I help you?
— Yes, I'd like to try on some sports jackets just likeI'm wearing.
| A．it | B．one | C．the one | D．that |