21. We spent a week in Paris and had a great time going up______ Eiffel Tower, and taking_______ boat trip along the Seine
A. a: a B. the: a C. the: the D. (不填)：（不填）
22 I have an important meeting_______ in an hour, but I can’t find anywhere to park my car.
A. to attend B. be attended C. attending D. attend
23._______ his experiment, the young man didn’t notice what was happening outside.
A. Involving in B. Involved in C. To be involved D. Being involved in
24. The living room is clean and tidy, with a dining table already_______ for a meal to be cooked.
A. laid B. laying C. to lay D. being laid
国内英语资讯:China seeks breakthroughs in combatting smog
naive
外研版高中英语必修四 Module 4（1）
英国七大社会阶层：你是“入不敷出族”还是“高薪族”？
史上最拉风儿童车 废旧零件再现“疯狂的麦克斯”（组图）
国内英语资讯:China to spur market vitality via integration of certificates
国内英语资讯:China to further cut red tape for better business environment
国内英语资讯:Lawmakers review reports on environment protection, supply-side structural reform
feelings
外研版高中英语必修五 MODULE1
国际英语资讯:President Trump orders probe into possible federal govts unlawful oversight on education
Once naive myself
once
国内英语资讯:Belt and Road Initiative to benefit China, Ukraine: Ukrainian officials
国内英语资讯:Xi stresses financial security
外研版高中英语必修四 Module3
五一去哪儿玩：全球最佳旅游目的地Top10
体坛英语资讯：Sahin extends contract with Borussia Dortmund
Compress，contract 与 condense 的区别
外研版高中英语必修五 Module2 A Job Worth Doing
国际英语资讯:Venezuela to exit Organization of American States: FM
Life is a canoe
童真,真是世界上最美的风景
未来不会再有“职业”，只有工作
Sincere friendship
国际英语资讯:India, Sri Lanka ink key agreement on economic cooperation
闪亮的星星 Shining Stars
国际英语资讯:U.S. Treasury secretary says to cut corporate tax rate to 15 percent
If I was a canoe
骑自行车能降低癌症风险，共享单车要笑醒了