If we _____ take environmental problems seriously，the earth _______ worse and worse．（ ）
A．don't； won't beB．won't； isn't
C．won't； isD．don't； will be
David is a tennis player．He to play tennis when he was six years old．（ ）
A．beginsB．will beginC．beganD．has begun
Have you ever to Caozhou Peony Garden？ Yes，I there last year．（ ）
A．been；wentB．gone；wentC．been； gone
Yesterday Mom________ me some money to buy a dictionary．（ ）
A．givesB．gaveC．has givenD．was giving
My mother said you went on a Silk Road trip last year．
Yes， it ______ a wonderful trip．（ ）
A．isB．wasC．will beD．were
Wow， you've made so much progress in drawing．
Thanks． I______two online courses this winter holiday．（ ）
A．tookB．will takeC．takeD．was taking
My feelings for you have not changed．
But you have changed． You are not as you _____．（ ）
A．areB．wereC．will beD．have been
Wendy，how long have you had the Huawei P30 Pro？
A couple of days． I ______ it last week．（ ）
A．boughtB．buy
C．will buyD．have bought
Jane ____ to call me last night， but she didn't．（ ）
A．supposedB．supposes
C．was supposedD．is supposed
There____six countries in SCO（上合组织） at first， but now the number has increased to eight．（ ）
A．isB．areC．wereD．will be
Hi， guys， please write three facts you last term in your project．（ ）
A．learnedB．are learning
C．have learnedD．learn
Great changes have taken place in our hometown over the past years．
Yeah． Things ______ different when we were young．（ ）
A．have beenB．areC．will beD．were
The students' interest in Chinese paper﹣cut a lot after a folk artist gave them a talk．（ ）
A．has risenB．roseC．risesD．was rising
Have you ever climbed Mount Tai，Carol？
Yes．I ______ in Taian for a week last year and reached the top of it twice．（ ）
A．had stayedB．stay
C．stayedD．have stayed
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