Choose the word or phrase that best completes the blank in each sentence: Điền vào chỗ trống trong mỗi câu với từ hoặc nhóm từ thích hợp.
1-
Gamma-ray bursts remained so _______ that astronomers could not decide whether they came from nearby stars or galaxies on the far edge of the Universe.
A -
mystery
B -
mysterious
C -
mystify
D -
mysteriously
2-
The fire caused _______ damage that the factory had to be demolished.
A -
so much
B -
too much
C -
such much
D -
very much
3-
The Highlands act as a divide and determine ______ rivers flow west to the Irish Sea or east to the North Sea.
A -
when
B -
how
C -
why
D -
whether
4-
The conflict and anxiety approach has worrying implications when it comes to trying to help people _____ their problems.
A -
solve
B -
solving
C -
to solve
D -
A & C are correct
5-
Police believe three sharks _______ the young woman, and have launched a large-scale hunt in local waters.
A -
couldn't have attacking
B -
should have attacked
C -
could have attacked
D -
might have been attacked
6-
Lung cancer and other illnesses _____to cigarette smoking.
A -
can to be traced
B -
can trace
C -
can be traced
D -
can be tracing
7-
He emphasized that there would be dope control after the race and warned us ____ any chances.
A -
not to take
B -
to not take
C -
not taking
D -
not take
8-
All planes _____ before departure.
A -
will check
B -
wil be checking
C -
will be check
D -
will be checked
9-
It was ______ lovely weather ______ we decided to spend the day on the beach.
A -
so / that
B -
too / for
C -
so / enough
D -
such / that
10-
This book had better _____ to the library before Friday.