The education system rather than the teachers ________ for the overburden on the students. [ ]

There are different kinds of presents in the giftshop. I can’t decide _______.

The plan to be carried out next month needs______ among the members of the labor union before ______.

helpyou —I’d liketo buy a gift for my mother, _____at a proper price but of great use

er Lee Chong Wei,who ______ his game due to injury.