My friend’s flight had taken off _________ I got to the airport to see him off.
| A．while | B．after | C．before | D．until |
The monkey was seen _________off the tall tree.
| A．jump | B．jumps | C．jumped | D．to jump |
—What do you think about the idea?
—I am really against _________ a running race in the street.
| A．to have | B．having | C．to having | D．have |
—Do you know whose dictionary it is?
—It ________ be Ann’s. Look! Her name is on the first page.
| A．must | B．could | C．might | D．can |
—Why does John look so sad?
—Lingling _________her ice cream on his new shoe.
| A．lost | B．fell | C．dropped | D．left |