— Air quality in our city is becoming worse and worse.—Yes. These days' PM2.5 readings are frightening. We must do something to ______air pollution.
#55017
A
reduce
B
remove
C
collect
D
gather
推荐题目
Mike has much difficulty ________ Chinese so he often asks me ________ help.
#55392
A
to understand; with
B
understanding;of
C
to understand;for
D
understanding; for
The little daughter has _____ for a long time. Her mother is trying waking her up now.
#60464
A
fallen asleep
B
been asleep
C
got to sleep
D
gone to bed
A: Can I _______ a book from you? B: Certainly. But you mustn’t ______ it to others. And please remember you can only ______ it for a week.
#59722
A
borrow, lend, borrow
B
lend, borrow, keep
C
lend, lend, keep
D
borrow, lend, keep