题目内容
_____ a lot of small ads are put up on the walls, out city will be untidy.
| A．Until | B．Though | C．If | D．Unless |
C
解析试题分析：句意：如果有许多小广告被贴在墙上，我们的城市将会不清洁。分析：考查if 引导的条件状语从句，体现主将从现的原则，不洁净的条件是墙上被贴上了小广告。故选 C
考点：考查连词的用法。
You’d better leave home as early as possible, ________ you will be late for the flight.
| A．and | B．but | C．so | D．or |
You’ll fail your next English exam _______ you work harder from now on.
| A．if | B．whether |
| C．until | D．unless |
— What do you think of Disney Park in Hong Kong?
— Oh, I think it the best park I have ever visited in China.
| A．which | B．that | C．where | D．when |
____________ Davy called me, I was sleeping.
| A．Until | B．When |
| C．While | D．Because |
—Mum, I want some pocket money.
—Well. I won’t give it to you __________ you wash your clothes.
| A．if | B．unless | C．while | D．though |
I don’t like all the traffic, I’ll drive there anyway.
| A．or | B．so |
| C．but | D．till |
— Sam, you don’t work hard at geography.
— My dad says that the world is changing every day, I decide to wait until it stops.
| A．because | B．while |
| C．if | D．so |
We never know we will succeed ________ we actually try.
| A．until | B．when | C．unless | D．though |