.Unless you have planted something, you won7t be able to know the pleasure of watchintit _______
Look out! Keep away from the house, _____ the roof is under repair.
YaoMing, as we know,_____ like to play basketball.
There are over 58,000 rocky objects in ______ space, about 900 of which could fall down onto ______ earth.
Even though they are not doubtful at all _______ John will pass the exam, I still wonder ______ he is fully prepared.
About 10,000 enthusiasts took part in the 2013 Sports Lottery New Year Climbing ________ on Tuesday at the Beijing Badaling section of the Great Wall.