【題目】 It’ll be another 50 years _________ China is expected to reach the level of a medium

developed country.

A. since B. before

C. that D. when

【答案】B

【解析】

試題分析：考查連詞。句義：五十年以后我國才有望達(dá)到中等發(fā)達(dá)國家的水平。It is+一段時間+before從句，過多久…才…；遵循主講從現(xiàn)的原則，B正確。Since引導(dǎo)時間狀語從句，從句用一般現(xiàn)在時，主句使用現(xiàn)在完成時。故B正確。

練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源： 題型：

【題目】 --- Hello, Tom. This is Mary speaking.

--- What a coincidence! I_________ about you.

A. just thought B. was just thinking

C. have just thought D. would just think

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】Mr White had that everyone would like to pay a visit to it.

A. a very beautiful garden

B. such beautiful a garden

C. so beautiful a garden

D. a too beautiful garden

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】 If you miss this chance, it may be years ____ you get another one.

A. as B. before

C. since D. after

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】Many students believe that the choice of their courses and universities should ______ their own interest.

A. be based on B. base on

C. be basing on D. base at

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】I can't concentrate my studies with all that noise going on.

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】 Will it be ages ______ he goes back to school? I'm so worried about him.

A. before B. after

C. when D. as

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】 — Could you please have my car ready today?

— Sure. The damage is not that serious, so it ______ be ready by 5:00 p.m.

A. should B. could

C. might D. need

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】John said he would pay ______ second visit to China ______ next month.

A. the；/ B. the；a

C. a；the D. a；a

查看答案和解析>>

同步練習(xí)冊答案