I'm going out． I'll be back _____ an hour．（ ）
A．atB．onC．inD．from
I can't afford the white dress．
What about the orange one？ The price is a little ．（ ）
A．cheaperB．higher
C．lowerD．more expensive
What are you watching？
The Story of China． This part at China Block Printing Museum of Yangzhou in 2014．（ ）
A．filmedB．was filmedC．has filmedD．is filmed
We should stop fireworks to reduce pollution．（ ）
A．getting offB．turning off
C．taking offD．setting off
When will your sister go to England？
She London since four months ago．（ ）
A．went toB．has gone to
C．has been toD．has been in
Hi， guys， please write three facts you last term in your project．（ ）
A．learnedB．are learning
C．have learnedD．learn