We were about to start out________ our friends called us up from Shanghai.
| A．when | B．while | C．until | D．before |
She returned home from the office, only ________ the door open and something missing.
| A．finding | B．to be found | C．to find | D．found |
________ her work has been good, but this essay is dreadful
| A．In a word | B．In general | C．In particular | D．In total |
They made no effort to hide their amusement ________ I produced a packet of sweets from my pocket.
| A．however | B．whatever | C．whichever | D．whenever |
________ you stepped into the lab with your shoes on? You’re supposed to take them off before you enter it. I told you so!
| A．How come | B．How dare | C．How about | D．How long |
The number of the people present at the concert ________ much smaller than expected. There ________ many tickets left.
| A．was; was | B．were; was | C．were; were | D．was; were |