A.play
B.was playing
C.has played
D.had played

A.red woolen lovely
B.lovely red woolen
C.red lovely woolen
D.lovely woolen red

A.was
B.and
C.most
D.scientist

A.factory
B.closes
C.people
D.made

A.25 m.
B.35 m.
C.30 m.
D.15 m.

A.42 m.
B.55 m.
C.80 m.
D.25 m.

A.180 m/s.
B.3194 m/s.
C.1452 m/s.
D.2365 m/s.

A.383140 km.
B.758140 km.
C.37500 km.
D.750000 km.

A.a. 60 km/h; b. 7h 30 phút.
B.a. 30 km/h; b. 8h.
C.a. 30 km/h; b. 7h 40 phút.
D.a. 60 km/h; b. 7h 40 phút.

A.a. 693 m; b. 1155 m/s.
B.a. 495 m; b. 235 m/s.
C.a. 495 m; b. 825 m/s.
D.a. 18 m; b. 9 m/s.