According to Ma Yun, great changes ________ in the field of online business in the1990s.
| A．took place | B．were taken place |
| C．happened | D．were happened |
Sixteen-years-olds shouldn’t ______ to go to an Internet bar．
| A．be allowed | B．be allow |
| C．allow | D．are allowed |
—Hi，Jack! Where_________ you ______ these days?
—I _________ Beijing for about 2 weeks．
| A．did go，have been to |
| B．have been，have gone to |
| C．have gone，have been in |
| D．have been，have been in |
There______ a basketball match tomorrow morning.
| A．has | B．is going to be |
| C．is going to have | D．have |
Winter holiday is coming. Li Lei with his father to go to Shanghai.
| A．want | B．will want |
| C．wants | D．is want |
He the book to the library if he it tomorrow.
| A．returns, finishes reading |
| B．will return, will finish to read |
| C．will return, finishes to read |
| D．will return, finishes reading |