Don’t play with the dog, Jack, for it ______ be dangerous at times.
| A．shall | B．can | C．should | D．must |
Bob tried to sweet-talk his mother into letting him go out. But when he saw his sweet talk________， he lost his temper.
| A．hadn’t worked | B．wasn’t working | C．isn’t working | D．doesn’t work |
________ at the foot of the mountain is an old church _______ back to the 18th century when it was occupied by the French.
| A．Standing；dating | B．Standing；dated | C．To stand；dating | D．Stood；to date |
— What did he think of the trip to Beijing last month？
— He had such a good time ________ he visited the Great Wall.
| A．until | B．that | C．where | D．when |
________ with a slow economic situation overseas，more Chinese students are returning home after studying abroad, ________ to work in the country or in west China.
| A．Having faced；to volunteer | B．To face；to volunteer |
| C．Facing；volunteering | D．Faced；volunteering |
—Have you heard from Nelly recently?
— Yes, I _________ his letters and cards many times while I was in Italy.
| A．have received | B．received | C．had received | D．would receive |