My uncle from Hongkong has changed so much that I could hardly ________ him at the airport.
| A．understand | B．realize |
| C．recognize | D．know |
Lily, my partner, is usually friendly to others, but she___ get into bad temper sometimes.
| A．must | B．should | C．may | D．can |
— I’m afraid that I may miss her at the airport.
— Don’t worry. She ______ a bunch of flowers at that time.
| A．holds | B．will be holding | C．was holding | D．held |
Facing the stress of employment, some college graduates make a popular choice ____ they will join the army.
| A．which | B．that | C．what | D．where |
How lucky he was! He ____ involved in the murder.
| A．must have been | B．can have been | C．could have been | D．would have been |
— You look pale. Did you sleep well？
— No. It was already midnight ____ I finished my homework.
| A．before | B．when | C．that | D．since |