_______Tom is very good at science, his brother is absolutely hopeless.
| A．When | B．While | C．As | D．If |
The dictionary is what I wart.but I don't have enough moneyme.
| A． | by | B． | for |
| C． | in | D． | with |
You park here! It’s an emergeney exft.
| A．wouldn’t | B．necdn’t |
| C．coukln’t | D．mtontn’t |
A cocnputcr can oaly doyou have inrrreled it to do .
| A． | how | B． | after | C． | what | D． | when |
The news shocked the public,to great concem about students' safety at school.
| A． | having led | B． | led |
| C． | leading | D． | to lead |
--Volunteering is becomingpopular in China.
--Yeah, people are now aware that helping others is helping themselves
| A． | naturally | B． | successfully | C． | splendidly | D． | increasingly |