If we _____ wasting water, there will be a shortage of fresh water in the future.
A.go to
B.turn on
C.go on
D.turn off

32.
A.opened
B.played
C.installed
D.polluted

31.
A.cheer
B.child
C.school
D.check

Choose A, B, C, or D that best completes each unfinished sentence, substitutes the underlined part, or has a close meaning to the original one.
Vietnamese girls/ wear the conical leaf hat/ a little umbrella/ protect themselves from sun or rain
A.Vietnamese girls who wear this leaf hat like a little umbrella so that it protects themselves from sun or rain.
B.Vietnamese girls wear this leaf hat such as a little umbrella for protecting themselves from sun or rain.
C.Vietnamese girls wear this leaf hat like a little umbrella to protect themselves from sun or rain.
D.Vietnamese girls wearing this leaf hat as a little umbrella to protect themselves from sun or rain.

Choose A, B, C, or D that best completes each unfinished sentence, substitutes the underlined part, or has a close meaning to the original one.
The hat/ usually consist of/ 16 to 18 rims/ make from special kind of bamboo/ the rims/ shape thinly into conical-form.
A.The hat usually consists of 16 to 18 rims made from special kind of bamboo when the rims are shaped thinly into conical-form.
B.The hat usually consists of 16 to 18 rims made from special kind of bamboo. The rims are shaped thinly into conical-form.
C.The hat usually consists of 16 to 18 rims that make from special kind of bamboo; the rims are shaped thinly into conical-form.
D.The hat usually consists of 16 to 18 rims making from special kind of bamboo. These rims that are shaped thinly into conical-form.

Choose A, B, C, or D that best completes each unfinished sentence, substitutes the underlined part, or has a close meaning to the original one.
The conical leaf hat/ call/ "Non La”/ Vietnamese/ make of a typical kind of soft palm
A.The conical leaf hat, which is called “Non La” in Vietnamese, is made of a typical kind of soft palm leaves.
B.The conical leaf hat it is called “Non La” in Vietnamese is made of a typical kind of soft palm leaves.
C.The conical leaf hat, it is called “Non La” in Vietnamese, making of a typical kind of soft palm leaves.
D.The conical leaf hat, calling "Non La" in Vietnamese, is made of a typical kind of soft palm leaves.

Choose A, B, C, or D that best completes each unfinished sentence, substitutes the underlined part, or has a close meaning to the original one.
You are not _______ to say anything unless you wish to do so.
A.obliged
B.willing
C.equal
D.attracted

Choose A, B, C, or D that best completes each unfinished sentence, substitutes the underlined part, or has a close meaning to the original one.
Not all men are concerned with _______ physical attractiveness of their girlfriends and wives.
A.A
B.An
C.The
D.Ø

Choose A, B, C, or D that best completes each unfinished sentence, substitutes the underlined part, or has a close meaning to the original one.
Socially, the married _______ is thought to be the basic unit of society.
A.couple
B.pair
C.twins
D.double

Choose A, B, C, or D that best completes each unfinished sentence, substitutes the underlined part, or has a close meaning to the original one.
My parents will have celebrated 30 years of _______ by next week.
A.marry
B.married
C.marriageable
D.marriage