It is now believed (A) that some damage to tissues (B) may result from (C) exposing it to (D) frequent X- ray.
A.believed
B.to tissues
C.from
D.it to

Ceramic can be harder, light (A), and more resistant (B) to heat (C) than metals (D).
A.light
B.resistant
C.heat
D.metals

All members shall (A) give the United Nations every (B) assistance in any action it does (C) in accordance with the (D) present Charter.
A.shall
B.every
C.it does
D.the

Only after announcing (A) the winter of the (B) best picture in Oscar 2017 Warren Beatty realized (C) that he had read (D) out the wrong film name.
A.announcing
B.the
C.Warren Beatty realized
D.read

United Nations is aimed at develop (A) friendly relations among nations based (B) on respect for the principle (C) of equal rights ans sefl-determination of peoples (D).
A.develop
B.based
C.principle
D.peoples

“Your kitchen is fantastic! Did you do it all yourself?” “No, I by a professional.”
A.have it designed
B.had designed it
C.had it designed
D.designed it

Each (A) of the beautiful cars (B) in the shop was quickly (C) sold to their (D) owner.
A.Each
B.cars
C.quickly
D.their

The team leader (A) demanded from his team members (B) a serious attitude towards work (C) , a good team spirit, and that they work hard (D).
A.team leader
B.his team members
C.attitude towards work
D.and that they work hard

We must (A) push the piano to the corner (B) of the hall (C) to make room to (D) our party tonight.
A.must
B.corner
C.hall
D.to

Walking (A) briskly for 30 minutes or to run (B) for 15 minutes will burn (C) an approximately (D) equal number of calories.
A.Walking
B.to run
C.will burn
D.approximately