If _____ carefully, the experiment will be successful

me, where’s the tea-room —It’sright over there. Can I helpyouwith_____—No, thanks.

Wang Yi plays basketball so well! Who taught _______—He learnt it by _______.

If you keep on, you’ll succeed ＿＿＿＿＿＿＿＿

general, _______ energy, we turn off the lights for Earth Hour on the last Saturday in March.