题目内容
—Would you mind if I borrowed your car just over the weekend?
—I'm sorry, but it's just not possible, because I ________ my mother this weekend.
| A．am visiting | B．have visited |
| C．was visiting | D．visited |
A
解析
If their marketing plans succeed，they ________ their sales by 20 percent.
| A．will increase | B．have been increasing |
| C．have increased | D．would be increasing |
(2013·高考湖南卷)If nothing________，the oceans will turn into fish deserts.
| A．does | B．had been done |
| C．will do | D．is done |
The London 2012 Olympic Games marks the third time that London ________ the right to host the modern Olympics.
| A．had had | B．has |
| C．had | D．has had |
I am so tired，for I ________ English for 2 hours.
| A．is studying | B．have been studying |
| C．was studying | D．had been studying |
Mary went to the box office at lunch time, but all the tickets ____out.
| A．would sell | B．had sold | C．have sold | D．was selling |
(2013·宜春五校联考)Someone ________ his car in front of my house and it's blocking my way.
| A．was parking | B．parked |
| C．has parked | D．had parked |
------You speak very good French!
--------Thanks .I _____ French in Sichuan University for four years.
| A． studied | B． study | C． was studying | D．had studied |
Scientists also have no idea how long it will be before all wild animals in the cages _____.
| A．should be set free | B．will be set free | C．are set free | D．would be set free |