The captain gave an order in the difficult situation________the sailors throw away everything that was on board the ship

A new study found ______ a teacher has anxiety about maths, ______ feeling can influence how his or her female students feel about math．

______ the students who took part in the training is 450.

The research is difficult. Who do youthink can do the job— mystudents have a try

Time is money. —But I think time is money.When money is spent, we can make more; but when time is gone, it never returns.