He always works hard, but__________, he didn't pass the exam.
He tried to join the army but was _____ because of poor health, which made him depressed.
The course normally attracts 20 students per year, ____ up to half will be from overseas.
----How could I apply for a course online? ----Just fill in this form and we _____ what we can do for you.
---- ? You look really down.---- I’m so tired of my job. There are endless problems to deal with.
Tony ____ the invitation, otherwise he would have attended your birthday party.