He finally _______ how to solve the problem after many tries.
studied
learned
reviewed
practiced
She clearly remembers _________ the classroom door before leaving school.
lock
to lock
locking
locked
After the teacher explained the math problem again, the students finally ________ how to solve it.
knew
believed
understood
thought
The feeling was so unusual that ______________ in words
it was hard to explain
it was hard to believe
it was hard to describe
it was hard to understand
The teacher plans to ____________ the students tomorrow.
discuss about the project with
discuss the project with
discuss the project about
discuss about the project
The teacher asked the students not to _______ during the test.
speak
say
tell
talk
She failed to _________ my question because she was too shocked.
reply
answer
ask
tell
because of =
so =
in an attempt to =
otherwise =
have an effect on/upon =