The purpose of new inventions is _______ life more difficult, but to make it easier.
#48430
A
not make
B
not making
C
not to make
D
do not make
推荐题目
Sorry,we don’t allow ________ in the lecture room.
#48947
A
to smoke
B
smoke
C
smoking
D
to smoking
Would you mind _________ in class? 
#50381
A
no talking
B
not talking
C
no talk
D
not talk
Half-time is a ________ period for the players _________.
#49074
A
10-minute, have a rest
B
10-minute; to have a rest
C
10 minutes; to rest
D
10 minute; for rest