Great changes __________ in China in the past few years.
| A． were taken place |
| B． took place |
| C． have been taken place |
| D． have taken place |
一Who is your favourite teacher?
一My English teacher，of course．She often encourages me ________ and helps me
a lot with my English．
| A．to study hard | B．studying hard |
| C．studies hard | D．study hard |
There are not many red—crowned cranes today and the number of them ________
getting ________．
| A．are；fewer and fewer | B．are；smaller and smaller |
| C．is；fewer and fewer | D．is；sma]ler and smaller |
Baby giant pandas ________ a lot of time ________ their mothers’milk every day．
| A．spend；to drink | B．cost；drinking |
| C．take；to drink | D．spend；drinking |
We need to ________ the problem in time—we can’t leave it till tomorrow．
| A．read | B．work |
| C．solve | D．Attack |
一Is Kitty really hardworking?
一Ye s_she keeps ________ dancing every day．
| A．practicing | B．to practice |
| C．practiced | D．Practices |