题目内容
______ he got ready to leave home, his parents came to his home.
| A．While | B．As | C．Until | D．If |
B
解析试题分析：句意:正当他打算离开家时，他的父母来到了他的家。while 当…时候，引导时间状语从句；as 当…时候，表示两个动作同时发生；until 直到…时候；if 如果，引导条件状语从句。根据句意可知选B。
考点：考查连词。
天天向上口算本系列答案Though English is very difficult to learn, _____ Li Ping _____ Li Lei speak English well．
| A．neither ; nor | B．either ; or | C．both ; and | D．either ; or |
— Why didn’t you try your best to get on the subway?
— I tried to, but it started moving ______ I could get on it.
| A．before | B．after | C．since | D．if |
You shouldn’t keep a pet _______________ you have enough time to care for it.
| A．if | B．unless | C．though | D．when |
Mr. Huang decided to buy that CD player it was expensive.
| A．even though | B．so that | C．because | D．as if |
Dad doesn’t want to sell the car. ______the car is old, it still runs well.
| A．Because | B．So | C．Though | D．But |
Susan was reading a newspaper on the train_________ a strange old man come over.
| A．when | B．while | C．before | D．after |
--- Your grandparents were very great.
--- Yes. They supported my father’s schooling _________ they were very poor.
| A．as if | B．even though | C．so that | D．what if |
—______ English can you speak? —Only a little.
| A．How many | B．How much | C．Which | D．What |