Grammar Review

1. A: Our new colleague is very late. I wonder why.

B: He _____ gotten confused. We changed the meeting so many times, he probably wasn’t clear about the final schedule.

(a) should have (c) must have

(b) can't have (d) could be

2. A: Have you worked with him before?

B: Yes. We _____ last year when we were on mission together in Arcadia City.

(a) introduced (c) were introduced

(b) have introduced (d) have been introduced

3. A: Did you enjoy your mission?

B: Yes, I'm grateful _____ the chance to go a UN office in another part of the world.

(a) to have had (c) having

(b) to have (d) to get

4. A: I remember _____ on my first mission.

B: Yes. You told me it was an unforgettable experience..

(a) to go (c) go

(b) going (d) to have gone

5. A: Some staff never go on mission.

B: They _____. It's really a great thing to do

(a) can to (c) must have

(b) should (d) like to