I really enjoyed your talk, ________ there were some parts I didn’t understand.

Kitty and I felt sick for ____________.

Chengdu has _______traffic that all the schools in it had a day off on the first day of the Western China International Economy and Trade Fair (西博会)to avoid traffic jams.

单词hospital 由 个音节构成，它的重音符号在第 个音节上。

ists have created GM tomatoes which______ fresh for 45 days, three times as long as normal tomatoes.