Choose the word whose main stressed syllable is placed differently from that of the other in each group. (25-27)

25. A. spacious                                  B. hungry                     C. abundant                D. dangerous

26. A. harmful                                   B. renewable                C. driverless                D. friendly

27. A. electricity                                B. shortage                   C. function                  D. energy

Choose the words whose underlined part is pronounced differently from that of the others in each group. (22-24)

22. A. played                                     B. decided                    C. enjoyed                   D. listened

23. A. brother                                    B. they                          C. think                       D. that

24. A. food                                        B. scooter                     C. shoot                       D. foot

21. ________________ and other buildings and the sun’s energy will be used to heat water,

A. Solar panels will place on the roofs of houses

B. Solar panels will be placing on the roofs of houses

C. Solar panels placed in the roofs of houses

D. Solar panels will be placed on the roofs of houses

2. We will reduce our use of electricity to save our energy

. A. The use of electricity will be reduced to save our energy.

B. The use of electricity will reduced to save our energy.

C. The use of electricity will be reducing to save our energy.

D. The use of electricity will be reduced saving our energy

Tác hại của tiếng ồn về tâm lí:

A.Mất tập trung, bực bội, khó chịu.

B.Mất tập trung, bực bội, nhức đầu.

C.Bực bội, khó chịu, choáng váng.

D.Mất tập trung, gầy yếu, khó chịu

Chiếu một tia tới lên một gương phẳng. Biết góc phản xạ i′ = 50⁰. Góc hợp bởi tia tới và mặt  gương là:

A. 40⁰ 

B. 25⁰ 

C. 50⁰ 

D. 90⁰