________ his pale face，we all suggested ________ to see the doctor right away.
| A．Seeing；he going | B．Having seen；him go |
| C．Seeing；his going | D．Seen；him going |
20．Tell John not to leave the house unless he_____________that the lights .
| A．will make sure，turn off | B．makes sure，are turned off |
| C．will make sure，will turn off | D．makes sure，will be turned off |
19．Mrs．Brown is so_________about her housework that few servants Want to work for her．
| A．skillful | B．neat | C．particular | D．Special |
18．After you have used the dictionary，please just put it back_________it belongs．
| A．to whom | B．to which | C．what | D．Where |
17．Now, boys，I’ll_________the story where I stopped yesterday．
| A．take over | B．take on | C．take in | D．take up |
16．It is usually not quite cold in this area in March，but sometimes temperature_______low．
| A．should | B．must | C．can | D．Shall |