Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.
Mrs. Wilkinson is very helpful in ______ books in the library that encompass the period of the Renaissance
A.will locate
B.located
C.to locate
D.locating

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to the following question.
Jenny is an early riser and she doesn’t object___________the trip before 7 a.m.
A.against starting
B.to start
C.to starting
D.to have to start

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.
My father continued _______ although the doctor advised him _______ the habit several times.
A.to smoke/ quit
B.smoking/ to quit
C.smoke/ quitting
D.for smoking/ of quitting

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.
It’s no use _______ a language if you don’t try to speak it too
A.learn
B.learning
C.learned
D.to learn

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.
It costs me a fortune, but I don’t regret_______ a year travelling around the world.
A.have spent
B.to spend
C.spent
D.spending

Phản ứng nào sau đây là phản ứng nhiệt nhôm?
A. $ 2\text{A}l+2NaOH+2{{H}_{2}}O\to 2NaAl{{O}_{2}}+3{{H}_{2}}. $
B. $ 2\text{A}l+3{{H}_{2}}S{{O}_{4}}\to A{{l}_{2}}{{(S{{O}_{4}})}_{3}}+3{{H}_{2}}. $
C. $ 3F\text{e}O+2\text{A}l\xrightarrow{{{t}^{o}}}3F\text{e}+A{{l}_{2}}{{O}_{3}}. $
D. $ 2\text{A}l+3CuS{{O}_{4}}\to A{{l}_{2}}{{(S{{O}_{4}})}_{3}}+3Cu. $

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to the following question.
Nowadays a large number of young people spend much time_________the Internet.
A.surfing
B.surfed
C.to surfing
D.to surf

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.
When ______ the 2018 Oscar for the best Actor in a Supporting Role, Sam Rockwell thanked his mom and dad for
A.awarded
B.was awarded
C.awarding
D.having awarded

Choose the right answer:
Ms. Daniels, a wealthy entrepreneur, is reputed to have developed her wealth through _________ in the stock market.
A.invested
B.invests
C.invest
D.investing

Choose the best answer for the following questions
It costs me a fortune, but I don’t regret______a year travelling around the world.
 
A.have spent
B.spent
C.to spend
D.spending