Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.
As soon as the spacecraft ___________ into space, the crew started to observe the sun.
A.
was travelling
B.
has travelled
C.
had travelled
D.
travelled
=> D. travelled
Cấu trúc “as soon as”:
Mệnh đề 1 ( QKĐ ) + as soon as + Mệnh đề 2 (QKĐ)
$@bangtann$
D. Travelled
vì ta có cấu trúc as soon as
Cấu trúc As soon as:
Mệnh đề 1 + as soon as + Mệnh đề 2
Thì quá khứ đơn Thì quá khứ đơn