【单选题】
Professor White is out of office right now. Can you leave a_________ or call later?
【单选题】
Lily forgot_______a letter to her sister, so she wrote to her just now.
【单选题】
“If we fail to act now,” said Tom, “We’ll find ourselves ____ in action later on.”
【单选题】
“If we fail to act now, “said Tom, “We’ll find ourselves _____in action later on.”
【单选题】
Everyone knows ( ) we should read more books.
【单选题】
Now we may be able to say ____ between music and noise.
①
that what the difference
【单选题】
4. One more week, ______ we will finish the task.
【单选题】
4.One more week, ______ we will finish the task.
【单选题】
Air is very important, _________ we cannot live any more.
【单选题】
The teacher told me that the students I wanted to see were seen___ football on the playground just now.