| A．gave | B．will give | C．gives | D．had given |
| A．begun | B．been on | C．started | D．been in |
| A．have stayed | B．stays | C．stay | D．had stayed |
| A．are | B．have been | C．had been | D．were |
| A．has started | B．had started | C．was started | D．had been started |
| A．grow | B．is growing | C．grows | D．grew |
| A．is raining | B．has rained | C．was raining | D．rains |
| A．is | B．was | C．will be | D．were |
| A．has moved | B．moved | C．moves | D．will move |
| A．am not doing | B．don’t do | C．didn’t do | D．won’t do |
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