Green products are becoming more and more popular because they are environmentally .
I wrote some notes about the meeting _____ it was reasonably fresh in my mind.
What a pity! The car ran out sight before I could _______ its number.
--- Recently many people have no intention of buying a house. --- I think the reason may be ______ the house price is too high.
Parents are advised to take pressure ______ a child and give him encouragement before an exam.
Today, ______ rapid transportation and communication, the whole world seems to be smaller.