--- How long has the film been on?
--- For twenty minutes. It ________ at half past six.
--My spoken English is poor. What shall I do?
--That's easy. Practise ________ it as much as possible.
“Where are your trousers?”
“________.”
“Can you ________ French?”
“Yes, I can, but ________.”
--Dear me! What a wonderful computer!
--My grandma bought it for my sister and me. It’s _______.
---Sorry, I can’t work out this problem.
---Try again, please. It’s only ______ difficult.
-________?
-On foot.
--Do you know Taiwan, Jenny?
--Yes, of course.Taiwan is ________ island.It belongs to China.