The result of the studies have had a strong impact on future developments.
A. of
B. have had
C. strong
D. on
Chọn B
I don't understand why the students didn'd keep silent while the speech ___________.
Some snakes have hollow teeth they are called fans that they use to poison their victims.
What woman was saying were so important that I asked everyone to stop talking and listen.
Sleeping, resting and to drink fruit juice are the best ways to cure for a cold.
She raised her hand high. she wanted to attract her teacher's attention.
We should participate in the movement _______ to conserve the natural environment.
An endangered species is the one __________ population is so small that it is in danger of becoming extinct.
Sports clear my mind. They also help me maintain a healthy lifestyle.