27. If we all use ______ bags, we'll help the environment.
A. reusable B. new C. beautiful D. dirty
28. Our family ______ to the new house next week.
A. will move B. moves C. move D. moved
29. If we ______ trees, our school ______ greener.
A. will grow/ is B. grow/ will be C. will grow/ are D. grow/ is
30. People ______ the environment if they ______ old items.
A. saved/ use B. save/ will use C. will save/ use D. save/ use
31. If they ______ an airport here, it ______ very noisy.
A. builds/ be B. build/ will be C. built/ is D. will build/ is
32. If the weather _______ sunny, I _______ to the zoo tomorrow.
A. is / go B. is / will go C. are/ go D. are / will go
33. Last night, I ________ out for dinner with my friends.
A. went B. go C. am going D. goes
34. The robot will help me to ______ the dogs and cats.
A. go B. feed C. swim D. make
35. What can an ________ helps us to do? - It can help us to cook rice.
A. fridge B. smart TV C. computer D. electric cooker