He ______ it on schedule, but somehow he fell behind.
| A．must have done | B．might finish |
| C．could have finished | D．could finish |
The watch was very good, and he20 percent down for it.
| A． | paid | B． | cost | C． | bought | D． | spent |
We very early so we packed the night Before.
| A．leave | B．had left | C．were leaving | D．have left |
Since nobody gave him any help, hehave done the research on his own.
| A．can | B．must | C．would | D．Need |
I got to the office earlier that day,the 7:30 train from Paddington.
| A．caught | B．to have caught | C．to catch | D．having caught |
When I arrived, Bryan took me to see the houseI would Be staying.
| A． | what | B． | when | C． | where | D． | Which |