Mr Chen __________ his mobile phone to the shop because it can’t work at all.
-----It’s hot. Would you mind my _____ the window? ------ _____.Do it as you like, please!
Why don’t you _____ your teacher for help when you can’t finish _____ it by yourself ?
.We have two rooms_____ ,but I can’t decide _______.
The students were made _____ in the exercise books.
-------How many students are there in the classroom? ------- ________ .They are all on the playground.