题目内容：
--Mary was heard __________ just now. What happened?--John was telling a joke.
参考答案：
答案解析：
单选题：--Mary was heard __________ just now. What happened?--John w
- 题目分类：英语
- 题目类型：单选题
- 查看权限：VIP
--John was telling a joke.
--John was telling a joke.
有2007盏亮着的灯，各有一个拉线开关控制着，拉一下拉线开关灯会灭掉，再拉一下灯由灭变亮，现按其顺序将灯编号为1，2，…
有2007盏亮着的灯，各有一个拉线开关控制着，拉一下拉线开关灯会灭掉，再拉一下灯由灭变亮，现按其顺序将灯编号为1，2，…，2007，然后将编号为2的倍数的灯线都
平均月收入最高的行业与最低的行业月收入相差多少元?（ ）
平均月收入最高的行业与最低的行业月收入相差多少元?（ ）
Lily is going to pay a visit to the Museum of Natural Histor
Lily is going to pay a visit to the Museum of Natural History. She wants to know
From the passage we know that your choices affect __________
From the passage we know that your choices affect __________.
The only youth elixir is__________.
The only youth elixir is__________.