He's been collecting stamps _ he was eight years old.
| A．when | B．while | C．and | D．since |
Look at ______ boy wearing a brown hat. Is he _________ university student?
| A．the, a | B．a, an | C．the, an | D．a, a |
— Could you let me know yesterday?
— Because the traffic was heavy.
| A．why did you come late | B．why do you come late |
| C．why you came late | D．why you come late |
A new library in my college next year.
| A．builds | B．built | C．is built | D．will be built |
— Where were you when I called you yesterday afternoon?
— I in the cinema.
| A．was seeing a movie | B．see a movie |
| C．have seen a movie | D．will see a movie |
The doctor told me more vegetables and fruit.
| A．eat | B．eating | C．eats | D．to eat |