1.The mother (send) a letter to her son every month
2.—Did Mr
Liu visit Beijing last week
—No, but he (visit) Beijing with his daughter in the coming holiday
3.Tony is good at the computer and he can always find some (use) information quickly
4. (with) plants, the world will be cold and lifeless like the moon
5.The Grand Canyon (大峡谷) is a great (nature) wonder
6.You can see four (key) on the table
7.Though it is today, the sunlight is very strong and it shines through the
(cloud)8.David (not go) shopping with me tomorrow
9.What (be) your brother going to do this weekend
10.My uncle grew some (apple) trees behind his house
11.How many kilos of (tomato) did you buy
12.Xinjiang is famous for (grape)
13.These (leaf) are used to make dishes
14.China has been growing rice for (thousand) of ye