單項(xiàng)選擇題These plants are rather difficult()

A.to look after
B.to be looked after
C.being looked after
D.looking after


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1.單項(xiàng)選擇題The act of speaking will also help to improve listening comprehension()

A.to some way
B.in the way
C.to some extent
D.in the extent

2.單項(xiàng)選擇題They walked()the woods.

A.up
B.down
C.through
D.over

3.單項(xiàng)選擇題It was well known that Thomas Edison()the electric lamp.

A.invented
B.discovered
C.found
D.developed

4.單項(xiàng)選擇題After stopping for a few minutes, the bus moved()to its next stop.

A.forward
B.off
C.with
D.on

5.單項(xiàng)選擇題The teacher spoke so fast that it was hard for the students to()what he was saying.

A.take in
B.take out
C.take up
D.take over