—I wonder what makes you a good salesperson．
—I as a waiter for three years，which contributes a lot to my today's work．
| A．serve | B．have served |
| C．had served | D．served |
The reason _______ he gave for being late was ________ he overslept this morning．
| A．why; that | B．why; because |
| C．which; that | D．which; because |
The dog had such ________ to its master that it would not leave him, even when he
was dead．
| A．devotion | B．contribution | C．connection | D．application |
To make the students understand the problem the teacher tried to explain it, but the explanation just did not _________to the class．
| A．get through | B．get around | C．get down | D．get across |
—Seems you are quite familiar with Russia.
—That is because I _________ the country in 1999.
| A．have visited | B．was visiting | C．had visited | D．visited |
For a long time they walked without saying ________ word. Jim was the first to break
___________ silence.
| A．the; a | B．a; the | C．a; / | D．the; / |