— At present, one of the best ways to study is working in groups.—More chances _______ to students to learn from each other.
#44448
A
offer
B
is offered
C
are offered
D
have offered
推荐题目
English _____ as a second language in many countries. 
#44745
A
speak
B
is spoken
C
is speaking
D
is speak
Professor Virginia ______to give a lecture in our school hall yesterday.
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A
invites
B
will be invited
C
was invited
D
is invited
Stamps are usually used _____letters.
#44752
A
to sending
B
to send
C
for send
D
for sent