— Only a small number of students able to pass the exam. — Yes. The number of them no more than 20.
There is _______ “U” and _____ “S” in the word “useful”.
---What’s in the fridge? ---A few ___________, but little _________。
--- How often does Daniel exercise?--- ___________.
Doctors say we need more fruit and vegetables to be ________ because _______ is very important.
--- __________your twin sister’s name Sandy?--- Yes, _______ is.